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Finding the Fourth Proportional to 98,329.92, 147,642.57 and 56,257.50

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Solution

The fourth proportional to 98,329.92, 147,642.57 and 56,257.50 is: 84,470.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,329.92 : 147,642.57 = 56,257.50 : x
  2. Step 2: Convert to fraction form
    98,329.92/147,642.57 = 56,257.50/x
  3. Step 3: Cross multiply
    98,329.92x = 147,642.57 × 56,257.50
  4. Step 4: Simplify right side
    98,329.92x = 8,306,001,881.78
  5. Step 5: Solve for x
    x = 8,306,001,881.78/98,329.92
  6. Step 6: Final answer
    x = 84,470.75

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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.