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Finding the Fourth Proportional to 94,609, 141,913.50 and 38,479.65

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Solution

The fourth proportional to 94,609, 141,913.50 and 38,479.65 is: 57,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,609 : 141,913.50 = 38,479.65 : x
  2. Step 2: Convert to fraction form
    94,609/141,913.50 = 38,479.65/x
  3. Step 3: Cross multiply
    94,609x = 141,913.50 × 38,479.65
  4. Step 4: Simplify right side
    94,609x = 5,460,781,810.28
  5. Step 5: Solve for x
    x = 5,460,781,810.28/94,609
  6. Step 6: Final answer
    x = 57,719.48

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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.