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Finding the Fourth Proportional to 83,559.72, 115,312.58 and 45,834.28

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Solution

The fourth proportional to 83,559.72, 115,312.58 and 45,834.28 is: 63,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,559.72 : 115,312.58 = 45,834.28 : x
  2. Step 2: Convert to fraction form
    83,559.72/115,312.58 = 45,834.28/x
  3. Step 3: Cross multiply
    83,559.72x = 115,312.58 × 45,834.28
  4. Step 4: Simplify right side
    83,559.72x = 5,285,269,079.24
  5. Step 5: Solve for x
    x = 5,285,269,079.24/83,559.72
  6. Step 6: Final answer
    x = 63,251.40

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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.