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Finding the Fourth Proportional to 112,225.50, 154,874.43 and 61,927.74

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Solution

The fourth proportional to 112,225.50, 154,874.43 and 61,927.74 is: 85,462.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,225.50 : 154,874.43 = 61,927.74 : x
  2. Step 2: Convert to fraction form
    112,225.50/154,874.43 = 61,927.74/x
  3. Step 3: Cross multiply
    112,225.50x = 154,874.43 × 61,927.74
  4. Step 4: Simplify right side
    112,225.50x = 9,591,023,433.69
  5. Step 5: Solve for x
    x = 9,591,023,433.69/112,225.50
  6. Step 6: Final answer
    x = 85,462.07

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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.