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Finding the Fourth Proportional to 83,303.76, 124,824.42 and 45,808.14

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Solution

The fourth proportional to 83,303.76, 124,824.42 and 45,808.14 is: 68,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,303.76 : 124,824.42 = 45,808.14 : x
  2. Step 2: Convert to fraction form
    83,303.76/124,824.42 = 45,808.14/x
  3. Step 3: Cross multiply
    83,303.76x = 124,824.42 × 45,808.14
  4. Step 4: Simplify right side
    83,303.76x = 5,717,974,506.78
  5. Step 5: Solve for x
    x = 5,717,974,506.78/83,303.76
  6. Step 6: Final answer
    x = 68,640.05

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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.