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Finding the Fourth Proportional to 96,400.30, 144,600.45 and 86,583.10

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Solution

The fourth proportional to 96,400.30, 144,600.45 and 86,583.10 is: 129,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,400.30 : 144,600.45 = 86,583.10 : x
  2. Step 2: Convert to fraction form
    96,400.30/144,600.45 = 86,583.10/x
  3. Step 3: Cross multiply
    96,400.30x = 144,600.45 × 86,583.10
  4. Step 4: Simplify right side
    96,400.30x = 12,519,955,222.40
  5. Step 5: Solve for x
    x = 12,519,955,222.40/96,400.30
  6. Step 6: Final answer
    x = 129,874.65

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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.