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Finding the Fourth Proportional to 92,770.04, 128,024.88 and 55,044.56

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Solution

The fourth proportional to 92,770.04, 128,024.88 and 55,044.56 is: 75,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,770.04 : 128,024.88 = 55,044.56 : x
  2. Step 2: Convert to fraction form
    92,770.04/128,024.88 = 55,044.56/x
  3. Step 3: Cross multiply
    92,770.04x = 128,024.88 × 55,044.56
  4. Step 4: Simplify right side
    92,770.04x = 7,047,073,188.65
  5. Step 5: Solve for x
    x = 7,047,073,188.65/92,770.04
  6. Step 6: Final answer
    x = 75,962.81

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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.