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Finding the Fourth Proportional to 84,117.79, 116,082.66 and 45,877.42

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Solution

The fourth proportional to 84,117.79, 116,082.66 and 45,877.42 is: 63,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,117.79 : 116,082.66 = 45,877.42 : x
  2. Step 2: Convert to fraction form
    84,117.79/116,082.66 = 45,877.42/x
  3. Step 3: Cross multiply
    84,117.79x = 116,082.66 × 45,877.42
  4. Step 4: Simplify right side
    84,117.79x = 5,325,572,947.54
  5. Step 5: Solve for x
    x = 5,325,572,947.54/84,117.79
  6. Step 6: Final answer
    x = 63,310.90

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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.