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Finding the Fourth Proportional to 178,171.79, 245,877.12 and 97,602.20

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Solution

The fourth proportional to 178,171.79, 245,877.12 and 97,602.20 is: 134,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,171.79 : 245,877.12 = 97,602.20 : x
  2. Step 2: Convert to fraction form
    178,171.79/245,877.12 = 97,602.20/x
  3. Step 3: Cross multiply
    178,171.79x = 245,877.12 × 97,602.20
  4. Step 4: Simplify right side
    178,171.79x = 23,998,146,612.28
  5. Step 5: Solve for x
    x = 23,998,146,612.28/178,171.79
  6. Step 6: Final answer
    x = 134,691.06

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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.