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Finding the Fourth Proportional to 98,452.61, 147,671.74 and 38,469.81

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Solution

The fourth proportional to 98,452.61, 147,671.74 and 38,469.81 is: 57,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,452.61 : 147,671.74 = 38,469.81 : x
  2. Step 2: Convert to fraction form
    98,452.61/147,671.74 = 38,469.81/x
  3. Step 3: Cross multiply
    98,452.61x = 147,671.74 × 38,469.81
  4. Step 4: Simplify right side
    98,452.61x = 5,680,903,780.17
  5. Step 5: Solve for x
    x = 5,680,903,780.17/98,452.61
  6. Step 6: Final answer
    x = 57,701.91

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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.