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Finding the Fourth Proportional to 625,553.88, 938,330.93 and 152,239.25

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Solution

The fourth proportional to 625,553.88, 938,330.93 and 152,239.25 is: 228,358.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,553.88 : 938,330.93 = 152,239.25 : x
  2. Step 2: Convert to fraction form
    625,553.88/938,330.93 = 152,239.25/x
  3. Step 3: Cross multiply
    625,553.88x = 938,330.93 × 152,239.25
  4. Step 4: Simplify right side
    625,553.88x = 142,850,791,582.15
  5. Step 5: Solve for x
    x = 142,850,791,582.15/625,553.88
  6. Step 6: Final answer
    x = 228,358.89

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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.