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Finding the Fourth Proportional to 75,211.85, 103,795.23 and 42,951.74

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Solution

The fourth proportional to 75,211.85, 103,795.23 and 42,951.74 is: 59,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,211.85 : 103,795.23 = 42,951.74 : x
  2. Step 2: Convert to fraction form
    75,211.85/103,795.23 = 42,951.74/x
  3. Step 3: Cross multiply
    75,211.85x = 103,795.23 × 42,951.74
  4. Step 4: Simplify right side
    75,211.85x = 4,458,185,213.22
  5. Step 5: Solve for x
    x = 4,458,185,213.22/75,211.85
  6. Step 6: Final answer
    x = 59,275.04

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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.