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Finding the Fourth Proportional to 157,468.66, 217,304.67 and 85,848.56

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Solution

The fourth proportional to 157,468.66, 217,304.67 and 85,848.56 is: 118,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,468.66 : 217,304.67 = 85,848.56 : x
  2. Step 2: Convert to fraction form
    157,468.66/217,304.67 = 85,848.56/x
  3. Step 3: Cross multiply
    157,468.66x = 217,304.67 × 85,848.56
  4. Step 4: Simplify right side
    157,468.66x = 18,655,293,051.08
  5. Step 5: Solve for x
    x = 18,655,293,051.08/157,468.66
  6. Step 6: Final answer
    x = 118,469.88

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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.