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Finding the Fourth Proportional to 332,438.10, 498,657.10 and 83,120.10

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Solution

The fourth proportional to 332,438.10, 498,657.10 and 83,120.10 is: 124,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,438.10 : 498,657.10 = 83,120.10 : x
  2. Step 2: Convert to fraction form
    332,438.10/498,657.10 = 83,120.10/x
  3. Step 3: Cross multiply
    332,438.10x = 498,657.10 × 83,120.10
  4. Step 4: Simplify right side
    332,438.10x = 41,448,428,017.71
  5. Step 5: Solve for x
    x = 41,448,428,017.71/332,438.10
  6. Step 6: Final answer
    x = 124,680.14

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Similar ratio
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1.5x scale

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.