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Finding the Fourth Proportional to 338,686.84, 508,129.02 and 151,654.60

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Solution

The fourth proportional to 338,686.84, 508,129.02 and 151,654.60 is: 227,526.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,686.84 : 508,129.02 = 151,654.60 : x
  2. Step 2: Convert to fraction form
    338,686.84/508,129.02 = 151,654.60/x
  3. Step 3: Cross multiply
    338,686.84x = 508,129.02 × 151,654.60
  4. Step 4: Simplify right side
    338,686.84x = 77,060,103,276.49
  5. Step 5: Solve for x
    x = 77,060,103,276.49/338,686.84
  6. Step 6: Final answer
    x = 227,526.12

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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.