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Finding the Fourth Proportional to 88,231.40, 132,128.40 and 56,592.80

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Solution

The fourth proportional to 88,231.40, 132,128.40 and 56,592.80 is: 84,748.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,231.40 : 132,128.40 = 56,592.80 : x
  2. Step 2: Convert to fraction form
    88,231.40/132,128.40 = 56,592.80/x
  3. Step 3: Cross multiply
    88,231.40x = 132,128.40 × 56,592.80
  4. Step 4: Simplify right side
    88,231.40x = 7,477,516,115.52
  5. Step 5: Solve for x
    x = 7,477,516,115.52/88,231.40
  6. Step 6: Final answer
    x = 84,748.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.