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Finding the Fourth Proportional to 98,374.74, 147,474.45 and 36,030.66

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Solution

The fourth proportional to 98,374.74, 147,474.45 and 36,030.66 is: 54,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,374.74 : 147,474.45 = 36,030.66 : x
  2. Step 2: Convert to fraction form
    98,374.74/147,474.45 = 36,030.66/x
  3. Step 3: Cross multiply
    98,374.74x = 147,474.45 × 36,030.66
  4. Step 4: Simplify right side
    98,374.74x = 5,313,601,766.64
  5. Step 5: Solve for x
    x = 5,313,601,766.64/98,374.74
  6. Step 6: Final answer
    x = 54,013.88

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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.