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Finding the Fourth Proportional to 98,886.59, 148,333.98 and 28,765.90

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Solution

The fourth proportional to 98,886.59, 148,333.98 and 28,765.90 is: 43,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,886.59 : 148,333.98 = 28,765.90 : x
  2. Step 2: Convert to fraction form
    98,886.59/148,333.98 = 28,765.90/x
  3. Step 3: Cross multiply
    98,886.59x = 148,333.98 × 28,765.90
  4. Step 4: Simplify right side
    98,886.59x = 4,266,960,728.57
  5. Step 5: Solve for x
    x = 4,266,960,728.57/98,886.59
  6. Step 6: Final answer
    x = 43,150.04

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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.