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Finding the Fourth Proportional to 74,111.60, 111,240.30 and 36,713.90

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Solution

The fourth proportional to 74,111.60, 111,240.30 and 36,713.90 is: 55,106.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.60 : 111,240.30 = 36,713.90 : x
  2. Step 2: Convert to fraction form
    74,111.60/111,240.30 = 36,713.90/x
  3. Step 3: Cross multiply
    74,111.60x = 111,240.30 × 36,713.90
  4. Step 4: Simplify right side
    74,111.60x = 4,084,065,250.17
  5. Step 5: Solve for x
    x = 4,084,065,250.17/74,111.60
  6. Step 6: Final answer
    x = 55,106.96

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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.