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Finding the Fourth Proportional to 577,367,999.40, 866,051,999.10 and 168,424,149.90

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Solution

The fourth proportional to 577,367,999.40, 866,051,999.10 and 168,424,149.90 is: 252,636,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,367,999.40 : 866,051,999.10 = 168,424,149.90 : x
  2. Step 2: Convert to fraction form
    577,367,999.40/866,051,999.10 = 168,424,149.90/x
  3. Step 3: Cross multiply
    577,367,999.40x = 866,051,999.10 × 168,424,149.90
  4. Step 4: Simplify right side
    577,367,999.40x = 145,864,071,717,613,088
  5. Step 5: Solve for x
    x = 145,864,071,717,613,088/577,367,999.40
  6. Step 6: Final answer
    x = 252,636,224.85

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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.