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Finding the Fourth Proportional to 576,915,713.20, 865,373,569.80 and 167,985,204.40

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Solution

The fourth proportional to 576,915,713.20, 865,373,569.80 and 167,985,204.40 is: 251,977,806.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,915,713.20 : 865,373,569.80 = 167,985,204.40 : x
  2. Step 2: Convert to fraction form
    576,915,713.20/865,373,569.80 = 167,985,204.40/x
  3. Step 3: Cross multiply
    576,915,713.20x = 865,373,569.80 × 167,985,204.40
  4. Step 4: Simplify right side
    576,915,713.20x = 145,369,956,005,210,656
  5. Step 5: Solve for x
    x = 145,369,956,005,210,656/576,915,713.20
  6. Step 6: Final answer
    x = 251,977,806.60

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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.