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Finding the Fourth Proportional to 83,118.96, 114,706.80 and 45,394.56

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Solution

The fourth proportional to 83,118.96, 114,706.80 and 45,394.56 is: 62,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,118.96 : 114,706.80 = 45,394.56 : x
  2. Step 2: Convert to fraction form
    83,118.96/114,706.80 = 45,394.56/x
  3. Step 3: Cross multiply
    83,118.96x = 114,706.80 × 45,394.56
  4. Step 4: Simplify right side
    83,118.96x = 5,207,064,715.01
  5. Step 5: Solve for x
    x = 5,207,064,715.01/83,118.96
  6. Step 6: Final answer
    x = 62,645.93

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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.