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Finding the Fourth Proportional to 98,681.62, 148,046.73 and 28,568.02

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Solution

The fourth proportional to 98,681.62, 148,046.73 and 28,568.02 is: 42,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,681.62 : 148,046.73 = 28,568.02 : x
  2. Step 2: Convert to fraction form
    98,681.62/148,046.73 = 28,568.02/x
  3. Step 3: Cross multiply
    98,681.62x = 148,046.73 × 28,568.02
  4. Step 4: Simplify right side
    98,681.62x = 4,229,401,943.57
  5. Step 5: Solve for x
    x = 4,229,401,943.57/98,681.62
  6. Step 6: Final answer
    x = 42,859.06

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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.