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Finding the Fourth Proportional to 125,118.48, 187,710.84 and 36,380.40

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Solution

The fourth proportional to 125,118.48, 187,710.84 and 36,380.40 is: 54,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,118.48 : 187,710.84 = 36,380.40 : x
  2. Step 2: Convert to fraction form
    125,118.48/187,710.84 = 36,380.40/x
  3. Step 3: Cross multiply
    125,118.48x = 187,710.84 × 36,380.40
  4. Step 4: Simplify right side
    125,118.48x = 6,828,995,443.54
  5. Step 5: Solve for x
    x = 6,828,995,443.54/125,118.48
  6. Step 6: Final answer
    x = 54,580.23

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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.