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Finding the Fourth Proportional to 79,595.55, 109,737.75 and 57,772.20

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Solution

The fourth proportional to 79,595.55, 109,737.75 and 57,772.20 is: 79,650.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,595.55 : 109,737.75 = 57,772.20 : x
  2. Step 2: Convert to fraction form
    79,595.55/109,737.75 = 57,772.20/x
  3. Step 3: Cross multiply
    79,595.55x = 109,737.75 × 57,772.20
  4. Step 4: Simplify right side
    79,595.55x = 6,339,791,240.55
  5. Step 5: Solve for x
    x = 6,339,791,240.55/79,595.55
  6. Step 6: Final answer
    x = 79,650.07

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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.