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Finding the Fourth Proportional to 119,613.52, 165,058.76 and 71,838.48

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Solution

The fourth proportional to 119,613.52, 165,058.76 and 71,838.48 is: 99,132.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,613.52 : 165,058.76 = 71,838.48 : x
  2. Step 2: Convert to fraction form
    119,613.52/165,058.76 = 71,838.48/x
  3. Step 3: Cross multiply
    119,613.52x = 165,058.76 × 71,838.48
  4. Step 4: Simplify right side
    119,613.52x = 11,857,570,429.08
  5. Step 5: Solve for x
    x = 11,857,570,429.08/119,613.52
  6. Step 6: Final answer
    x = 99,132.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.