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Finding the Fourth Proportional to 94,889.97, 130,944.20 and 56,655.72

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Solution

The fourth proportional to 94,889.97, 130,944.20 and 56,655.72 is: 78,182.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,889.97 : 130,944.20 = 56,655.72 : x
  2. Step 2: Convert to fraction form
    94,889.97/130,944.20 = 56,655.72/x
  3. Step 3: Cross multiply
    94,889.97x = 130,944.20 × 56,655.72
  4. Step 4: Simplify right side
    94,889.97x = 7,418,737,647.55
  5. Step 5: Solve for x
    x = 7,418,737,647.55/94,889.97
  6. Step 6: Final answer
    x = 78,182.53

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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.