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Finding the Fourth Proportional to 57,246.90, 85,870.35 and 49,373.70

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Solution

The fourth proportional to 57,246.90, 85,870.35 and 49,373.70 is: 74,060.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246.90 : 85,870.35 = 49,373.70 : x
  2. Step 2: Convert to fraction form
    57,246.90/85,870.35 = 49,373.70/x
  3. Step 3: Cross multiply
    57,246.90x = 85,870.35 × 49,373.70
  4. Step 4: Simplify right side
    57,246.90x = 4,239,736,899.80
  5. Step 5: Solve for x
    x = 4,239,736,899.80/57,246.90
  6. Step 6: Final answer
    x = 74,060.55

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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.