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Finding the Fourth Proportional to 98,174.88, 147,267.18 and 28,064.52

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Solution

The fourth proportional to 98,174.88, 147,267.18 and 28,064.52 is: 42,098.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,174.88 : 147,267.18 = 28,064.52 : x
  2. Step 2: Convert to fraction form
    98,174.88/147,267.18 = 28,064.52/x
  3. Step 3: Cross multiply
    98,174.88x = 147,267.18 × 28,064.52
  4. Step 4: Simplify right side
    98,174.88x = 4,132,982,718.45
  5. Step 5: Solve for x
    x = 4,132,982,718.45/98,174.88
  6. Step 6: Final answer
    x = 42,098.17

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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.