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Finding the Fourth Proportional to 88,515.40, 132,926.70 and 47,043.40

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Solution

The fourth proportional to 88,515.40, 132,926.70 and 47,043.40 is: 70,646.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,515.40 : 132,926.70 = 47,043.40 : x
  2. Step 2: Convert to fraction form
    88,515.40/132,926.70 = 47,043.40/x
  3. Step 3: Cross multiply
    88,515.40x = 132,926.70 × 47,043.40
  4. Step 4: Simplify right side
    88,515.40x = 6,253,323,918.78
  5. Step 5: Solve for x
    x = 6,253,323,918.78/88,515.40
  6. Step 6: Final answer
    x = 70,646.73

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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.