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Finding the Fourth Proportional to 98,627.87, 147,957.69 and 34,603.78

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Solution

The fourth proportional to 98,627.87, 147,957.69 and 34,603.78 is: 51,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,627.87 : 147,957.69 = 34,603.78 : x
  2. Step 2: Convert to fraction form
    98,627.87/147,957.69 = 34,603.78/x
  3. Step 3: Cross multiply
    98,627.87x = 147,957.69 × 34,603.78
  4. Step 4: Simplify right side
    98,627.87x = 5,119,895,354.07
  5. Step 5: Solve for x
    x = 5,119,895,354.07/98,627.87
  6. Step 6: Final answer
    x = 51,911.24

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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.