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Finding the Fourth Proportional to 172,654.58, 238,398.45 and 135,036.02

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Solution

The fourth proportional to 172,654.58, 238,398.45 and 135,036.02 is: 186,455.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,654.58 : 238,398.45 = 135,036.02 : x
  2. Step 2: Convert to fraction form
    172,654.58/238,398.45 = 135,036.02/x
  3. Step 3: Cross multiply
    172,654.58x = 238,398.45 × 135,036.02
  4. Step 4: Simplify right side
    172,654.58x = 32,192,377,862.17
  5. Step 5: Solve for x
    x = 32,192,377,862.17/172,654.58
  6. Step 6: Final answer
    x = 186,455.39

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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.