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Finding the Fourth Proportional to 169,598.40, 254,397.60 and 86,654.40

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Solution

The fourth proportional to 169,598.40, 254,397.60 and 86,654.40 is: 129,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,598.40 : 254,397.60 = 86,654.40 : x
  2. Step 2: Convert to fraction form
    169,598.40/254,397.60 = 86,654.40/x
  3. Step 3: Cross multiply
    169,598.40x = 254,397.60 × 86,654.40
  4. Step 4: Simplify right side
    169,598.40x = 22,044,671,389.44
  5. Step 5: Solve for x
    x = 22,044,671,389.44/169,598.40
  6. Step 6: Final answer
    x = 129,981.60

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1.5x scale

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.