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Finding the Fourth Proportional to 185,987.96, 256,668.70 and 113,395.04

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Solution

The fourth proportional to 185,987.96, 256,668.70 and 113,395.04 is: 156,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,987.96 : 256,668.70 = 113,395.04 : x
  2. Step 2: Convert to fraction form
    185,987.96/256,668.70 = 113,395.04/x
  3. Step 3: Cross multiply
    185,987.96x = 256,668.70 × 113,395.04
  4. Step 4: Simplify right side
    185,987.96x = 29,104,957,503.25
  5. Step 5: Solve for x
    x = 29,104,957,503.25/185,987.96
  6. Step 6: Final answer
    x = 156,488.40

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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.