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Finding the Fourth Proportional to 156,167.64, 215,512.52 and 84,548.87

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Solution

The fourth proportional to 156,167.64, 215,512.52 and 84,548.87 is: 116,678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,167.64 : 215,512.52 = 84,548.87 : x
  2. Step 2: Convert to fraction form
    156,167.64/215,512.52 = 84,548.87/x
  3. Step 3: Cross multiply
    156,167.64x = 215,512.52 × 84,548.87
  4. Step 4: Simplify right side
    156,167.64x = 18,221,340,036.85
  5. Step 5: Solve for x
    x = 18,221,340,036.85/156,167.64
  6. Step 6: Final answer
    x = 116,678.08

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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.