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Finding the Fourth Proportional to 482,987.59, 724,506.98 and 146,019.65

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Solution

The fourth proportional to 482,987.59, 724,506.98 and 146,019.65 is: 219,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,987.59 : 724,506.98 = 146,019.65 : x
  2. Step 2: Convert to fraction form
    482,987.59/724,506.98 = 146,019.65/x
  3. Step 3: Cross multiply
    482,987.59x = 724,506.98 × 146,019.65
  4. Step 4: Simplify right side
    482,987.59x = 105,792,252,110.88
  5. Step 5: Solve for x
    x = 105,792,252,110.88/482,987.59
  6. Step 6: Final answer
    x = 219,037.20

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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.