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Finding the Fourth Proportional to 119,337.65, 164,680.31 and 65,624.93

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Solution

The fourth proportional to 119,337.65, 164,680.31 and 65,624.93 is: 90,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,337.65 : 164,680.31 = 65,624.93 : x
  2. Step 2: Convert to fraction form
    119,337.65/164,680.31 = 65,624.93/x
  3. Step 3: Cross multiply
    119,337.65x = 164,680.31 × 65,624.93
  4. Step 4: Simplify right side
    119,337.65x = 10,807,133,156.79
  5. Step 5: Solve for x
    x = 10,807,133,156.79/119,337.65
  6. Step 6: Final answer
    x = 90,559.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.