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Finding the Fourth Proportional to 91,751.60, 137,497.80 and 56,586.80

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Solution

The fourth proportional to 91,751.60, 137,497.80 and 56,586.80 is: 84,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,751.60 : 137,497.80 = 56,586.80 : x
  2. Step 2: Convert to fraction form
    91,751.60/137,497.80 = 56,586.80/x
  3. Step 3: Cross multiply
    91,751.60x = 137,497.80 × 56,586.80
  4. Step 4: Simplify right side
    91,751.60x = 7,780,560,509.04
  5. Step 5: Solve for x
    x = 7,780,560,509.04/91,751.60
  6. Step 6: Final answer
    x = 84,800.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.