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Finding the Fourth Proportional to 160,421.73, 240,869.15 and 89,482.97

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Solution

The fourth proportional to 160,421.73, 240,869.15 and 89,482.97 is: 134,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,421.73 : 240,869.15 = 89,482.97 : x
  2. Step 2: Convert to fraction form
    160,421.73/240,869.15 = 89,482.97/x
  3. Step 3: Cross multiply
    160,421.73x = 240,869.15 × 89,482.97
  4. Step 4: Simplify right side
    160,421.73x = 21,553,686,736.25
  5. Step 5: Solve for x
    x = 21,553,686,736.25/160,421.73
  6. Step 6: Final answer
    x = 134,356.40

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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.