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Finding the Fourth Proportional to 281,002.59, 421,555.88 and 88,925.39

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Solution

The fourth proportional to 281,002.59, 421,555.88 and 88,925.39 is: 133,404.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,002.59 : 421,555.88 = 88,925.39 : x
  2. Step 2: Convert to fraction form
    281,002.59/421,555.88 = 88,925.39/x
  3. Step 3: Cross multiply
    281,002.59x = 421,555.88 × 88,925.39
  4. Step 4: Simplify right side
    281,002.59x = 37,487,020,731.16
  5. Step 5: Solve for x
    x = 37,487,020,731.16/281,002.59
  6. Step 6: Final answer
    x = 133,404.54

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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.