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Finding the Fourth Proportional to 80,851,545.60, 121,277,318.40 and 80,851,545.60

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Solution

The fourth proportional to 80,851,545.60, 121,277,318.40 and 80,851,545.60 is: 121,277,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,851,545.60 : 121,277,318.40 = 80,851,545.60 : x
  2. Step 2: Convert to fraction form
    80,851,545.60/121,277,318.40 = 80,851,545.60/x
  3. Step 3: Cross multiply
    80,851,545.60x = 121,277,318.40 × 80,851,545.60
  4. Step 4: Simplify right side
    80,851,545.60x = 9,805,458,638,863,318
  5. Step 5: Solve for x
    x = 9,805,458,638,863,318/80,851,545.60
  6. Step 6: Final answer
    x = 121,277,318.40

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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.