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Finding the Fourth Proportional to 112,480.68, 155,230.02 and 64,732.98

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Solution

The fourth proportional to 112,480.68, 155,230.02 and 64,732.98 is: 89,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,480.68 : 155,230.02 = 64,732.98 : x
  2. Step 2: Convert to fraction form
    112,480.68/155,230.02 = 64,732.98/x
  3. Step 3: Cross multiply
    112,480.68x = 155,230.02 × 64,732.98
  4. Step 4: Simplify right side
    112,480.68x = 10,048,501,780.06
  5. Step 5: Solve for x
    x = 10,048,501,780.06/112,480.68
  6. Step 6: Final answer
    x = 89,335.36

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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.