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Finding the Fourth Proportional to 168,543.48, 232,368.54 and 129,824.88

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Solution

The fourth proportional to 168,543.48, 232,368.54 and 129,824.88 is: 178,987.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,543.48 : 232,368.54 = 129,824.88 : x
  2. Step 2: Convert to fraction form
    168,543.48/232,368.54 = 129,824.88/x
  3. Step 3: Cross multiply
    168,543.48x = 232,368.54 × 129,824.88
  4. Step 4: Simplify right side
    168,543.48x = 30,167,217,821.28
  5. Step 5: Solve for x
    x = 30,167,217,821.28/168,543.48
  6. Step 6: Final answer
    x = 178,987.75

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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.