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Finding the Fourth Proportional to 112,805.50, 169,218.70 and 36,904.46

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Solution

The fourth proportional to 112,805.50, 169,218.70 and 36,904.46 is: 55,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,805.50 : 169,218.70 = 36,904.46 : x
  2. Step 2: Convert to fraction form
    112,805.50/169,218.70 = 36,904.46/x
  3. Step 3: Cross multiply
    112,805.50x = 169,218.70 × 36,904.46
  4. Step 4: Simplify right side
    112,805.50x = 6,244,924,745.40
  5. Step 5: Solve for x
    x = 6,244,924,745.40/112,805.50
  6. Step 6: Final answer
    x = 55,360.11

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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.