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Finding the Fourth Proportional to 239,488,553.80, 359,232,830.70 and 215,254,844.20

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Solution

The fourth proportional to 239,488,553.80, 359,232,830.70 and 215,254,844.20 is: 322,882,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,488,553.80 : 359,232,830.70 = 215,254,844.20 : x
  2. Step 2: Convert to fraction form
    239,488,553.80/359,232,830.70 = 215,254,844.20/x
  3. Step 3: Cross multiply
    239,488,553.80x = 359,232,830.70 × 215,254,844.20
  4. Step 4: Simplify right side
    239,488,553.80x = 77,326,607,003,853,472
  5. Step 5: Solve for x
    x = 77,326,607,003,853,472/239,488,553.80
  6. Step 6: Final answer
    x = 322,882,266.30

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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.