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Finding the Fourth Proportional to 91,970.70, 137,923.65 and 32,808.30

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Solution

The fourth proportional to 91,970.70, 137,923.65 and 32,808.30 is: 49,200.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,970.70 : 137,923.65 = 32,808.30 : x
  2. Step 2: Convert to fraction form
    91,970.70/137,923.65 = 32,808.30/x
  3. Step 3: Cross multiply
    91,970.70x = 137,923.65 × 32,808.30
  4. Step 4: Simplify right side
    91,970.70x = 4,525,040,486.30
  5. Step 5: Solve for x
    x = 4,525,040,486.30/91,970.70
  6. Step 6: Final answer
    x = 49,200.89

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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.