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Finding the Fourth Proportional to 516,368.73, 774,553.70 and 161,384.61

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Solution

The fourth proportional to 516,368.73, 774,553.70 and 161,384.61 is: 242,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,368.73 : 774,553.70 = 161,384.61 : x
  2. Step 2: Convert to fraction form
    516,368.73/774,553.70 = 161,384.61/x
  3. Step 3: Cross multiply
    516,368.73x = 774,553.70 × 161,384.61
  4. Step 4: Simplify right side
    516,368.73x = 125,001,046,798.56
  5. Step 5: Solve for x
    x = 125,001,046,798.56/516,368.73
  6. Step 6: Final answer
    x = 242,077.10

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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.