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Finding the Fourth Proportional to 157,654.48, 217,548.36 and 93,979.60

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Solution

The fourth proportional to 157,654.48, 217,548.36 and 93,979.60 is: 129,683.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,654.48 : 217,548.36 = 93,979.60 : x
  2. Step 2: Convert to fraction form
    157,654.48/217,548.36 = 93,979.60/x
  3. Step 3: Cross multiply
    157,654.48x = 217,548.36 × 93,979.60
  4. Step 4: Simplify right side
    157,654.48x = 20,445,107,853.46
  5. Step 5: Solve for x
    x = 20,445,107,853.46/157,654.48
  6. Step 6: Final answer
    x = 129,683.01

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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.