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Finding the Fourth Proportional to 125,280,339.60, 187,920,509.40 and 125,280,339.60

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Solution

The fourth proportional to 125,280,339.60, 187,920,509.40 and 125,280,339.60 is: 187,920,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,280,339.60 : 187,920,509.40 = 125,280,339.60 : x
  2. Step 2: Convert to fraction form
    125,280,339.60/187,920,509.40 = 125,280,339.60/x
  3. Step 3: Cross multiply
    125,280,339.60x = 187,920,509.40 × 125,280,339.60
  4. Step 4: Simplify right side
    125,280,339.60x = 23,542,745,235,436,992
  5. Step 5: Solve for x
    x = 23,542,745,235,436,992/125,280,339.60
  6. Step 6: Final answer
    x = 187,920,509.40

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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.