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Finding the Fourth Proportional to 119,613.55, 165,074.13 and 65,898.55

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Solution

The fourth proportional to 119,613.55, 165,074.13 and 65,898.55 is: 90,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,613.55 : 165,074.13 = 65,898.55 : x
  2. Step 2: Convert to fraction form
    119,613.55/165,074.13 = 65,898.55/x
  3. Step 3: Cross multiply
    119,613.55x = 165,074.13 × 65,898.55
  4. Step 4: Simplify right side
    119,613.55x = 10,878,145,809.51
  5. Step 5: Solve for x
    x = 10,878,145,809.51/119,613.55
  6. Step 6: Final answer
    x = 90,944.09

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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.