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Finding the Fourth Proportional to 499,788.61, 749,682.92 and 144,802.87

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Solution

The fourth proportional to 499,788.61, 749,682.92 and 144,802.87 is: 217,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,788.61 : 749,682.92 = 144,802.87 : x
  2. Step 2: Convert to fraction form
    499,788.61/749,682.92 = 144,802.87/x
  3. Step 3: Cross multiply
    499,788.61x = 749,682.92 × 144,802.87
  4. Step 4: Simplify right side
    499,788.61x = 108,556,237,681.97
  5. Step 5: Solve for x
    x = 108,556,237,681.97/499,788.61
  6. Step 6: Final answer
    x = 217,204.31

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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.