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Finding the Fourth Proportional to 117,221.84, 175,830.28 and 28,475.76

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Solution

The fourth proportional to 117,221.84, 175,830.28 and 28,475.76 is: 42,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,221.84 : 175,830.28 = 28,475.76 : x
  2. Step 2: Convert to fraction form
    117,221.84/175,830.28 = 28,475.76/x
  3. Step 3: Cross multiply
    117,221.84x = 175,830.28 × 28,475.76
  4. Step 4: Simplify right side
    117,221.84x = 5,006,900,854.01
  5. Step 5: Solve for x
    x = 5,006,900,854.01/117,221.84
  6. Step 6: Final answer
    x = 42,713.04

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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.