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Finding the Fourth Proportional to 156,064.88, 215,369.28 and 88,096.16

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Solution

The fourth proportional to 156,064.88, 215,369.28 and 88,096.16 is: 121,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,064.88 : 215,369.28 = 88,096.16 : x
  2. Step 2: Convert to fraction form
    156,064.88/215,369.28 = 88,096.16/x
  3. Step 3: Cross multiply
    156,064.88x = 215,369.28 × 88,096.16
  4. Step 4: Simplify right side
    156,064.88x = 18,973,206,549.96
  5. Step 5: Solve for x
    x = 18,973,206,549.96/156,064.88
  6. Step 6: Final answer
    x = 121,572.56

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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.