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Finding the Fourth Proportional to 313,304.69, 469,981.86 and 88,666.52

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Solution

The fourth proportional to 313,304.69, 469,981.86 and 88,666.52 is: 133,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,304.69 : 469,981.86 = 88,666.52 : x
  2. Step 2: Convert to fraction form
    313,304.69/469,981.86 = 88,666.52/x
  3. Step 3: Cross multiply
    313,304.69x = 469,981.86 × 88,666.52
  4. Step 4: Simplify right side
    313,304.69x = 41,671,653,639.42
  5. Step 5: Solve for x
    x = 41,671,653,639.42/313,304.69
  6. Step 6: Final answer
    x = 133,006.80

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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.