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Finding the Fourth Proportional to 83,230.75, 114,858.63 and 45,507.43

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Solution

The fourth proportional to 83,230.75, 114,858.63 and 45,507.43 is: 62,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,230.75 : 114,858.63 = 45,507.43 : x
  2. Step 2: Convert to fraction form
    83,230.75/114,858.63 = 45,507.43/x
  3. Step 3: Cross multiply
    83,230.75x = 114,858.63 × 45,507.43
  4. Step 4: Simplify right side
    83,230.75x = 5,226,920,262.79
  5. Step 5: Solve for x
    x = 5,226,920,262.79/83,230.75
  6. Step 6: Final answer
    x = 62,800.35

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1.5x scale

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.