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Finding the Fourth Proportional to 125,280,300.85, 187,920,451.28 and 125,280,300.85

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Solution

The fourth proportional to 125,280,300.85, 187,920,451.28 and 125,280,300.85 is: 187,920,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,280,300.85 : 187,920,451.28 = 125,280,300.85 : x
  2. Step 2: Convert to fraction form
    125,280,300.85/187,920,451.28 = 125,280,300.85/x
  3. Step 3: Cross multiply
    125,280,300.85x = 187,920,451.28 × 125,280,300.85
  4. Step 4: Simplify right side
    125,280,300.85x = 23,542,730,671,599,764
  5. Step 5: Solve for x
    x = 23,542,730,671,599,764/125,280,300.85
  6. Step 6: Final answer
    x = 187,920,451.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.