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Finding the Fourth Proportional to 178,817,578.80, 268,013,791.80 and 160,536,008.40

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Solution

The fourth proportional to 178,817,578.80, 268,013,791.80 and 160,536,008.40 is: 240,613,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,817,578.80 : 268,013,791.80 = 160,536,008.40 : x
  2. Step 2: Convert to fraction form
    178,817,578.80/268,013,791.80 = 160,536,008.40/x
  3. Step 3: Cross multiply
    178,817,578.80x = 268,013,791.80 × 160,536,008.40
  4. Step 4: Simplify right side
    178,817,578.80x = 43,025,864,331,720,656
  5. Step 5: Solve for x
    x = 43,025,864,331,720,656/178,817,578.80
  6. Step 6: Final answer
    x = 240,613,169.13

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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.