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Finding the Fourth Proportional to 96,542.40, 144,813.60 and 57,079.20

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Solution

The fourth proportional to 96,542.40, 144,813.60 and 57,079.20 is: 85,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,542.40 : 144,813.60 = 57,079.20 : x
  2. Step 2: Convert to fraction form
    96,542.40/144,813.60 = 57,079.20/x
  3. Step 3: Cross multiply
    96,542.40x = 144,813.60 × 57,079.20
  4. Step 4: Simplify right side
    96,542.40x = 8,265,844,437.12
  5. Step 5: Solve for x
    x = 8,265,844,437.12/96,542.40
  6. Step 6: Final answer
    x = 85,618.80

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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.