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Finding the Fourth Proportional to 316,952.11, 475,327.68 and 103,670.70

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Solution

The fourth proportional to 316,952.11, 475,327.68 and 103,670.70 is: 155,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,952.11 : 475,327.68 = 103,670.70 : x
  2. Step 2: Convert to fraction form
    316,952.11/475,327.68 = 103,670.70/x
  3. Step 3: Cross multiply
    316,952.11x = 475,327.68 × 103,670.70
  4. Step 4: Simplify right side
    316,952.11x = 49,277,553,314.98
  5. Step 5: Solve for x
    x = 49,277,553,314.98/316,952.11
  6. Step 6: Final answer
    x = 155,473.18

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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.