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Finding the Fourth Proportional to 94,107.52, 129,872.40 and 55,889.68

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Solution

The fourth proportional to 94,107.52, 129,872.40 and 55,889.68 is: 77,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,107.52 : 129,872.40 = 55,889.68 : x
  2. Step 2: Convert to fraction form
    94,107.52/129,872.40 = 55,889.68/x
  3. Step 3: Cross multiply
    94,107.52x = 129,872.40 × 55,889.68
  4. Step 4: Simplify right side
    94,107.52x = 7,258,526,876.83
  5. Step 5: Solve for x
    x = 7,258,526,876.83/94,107.52
  6. Step 6: Final answer
    x = 77,130.15

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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.