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Finding the Fourth Proportional to 316,925.87, 475,575.68 and 117,386.42

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Solution

The fourth proportional to 316,925.87, 475,575.68 and 117,386.42 is: 176,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,925.87 : 475,575.68 = 117,386.42 : x
  2. Step 2: Convert to fraction form
    316,925.87/475,575.68 = 117,386.42/x
  3. Step 3: Cross multiply
    316,925.87x = 475,575.68 × 117,386.42
  4. Step 4: Simplify right side
    316,925.87x = 55,826,126,514.27
  5. Step 5: Solve for x
    x = 55,826,126,514.27/316,925.87
  6. Step 6: Final answer
    x = 176,148.85

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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.