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Finding the Fourth Proportional to 370,459.44, 555,684.84 and 89,976.96

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Solution

The fourth proportional to 370,459.44, 555,684.84 and 89,976.96 is: 134,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,459.44 : 555,684.84 = 89,976.96 : x
  2. Step 2: Convert to fraction form
    370,459.44/555,684.84 = 89,976.96/x
  3. Step 3: Cross multiply
    370,459.44x = 555,684.84 × 89,976.96
  4. Step 4: Simplify right side
    370,459.44x = 49,998,832,621.29
  5. Step 5: Solve for x
    x = 49,998,832,621.29/370,459.44
  6. Step 6: Final answer
    x = 134,964.39

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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.