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Finding the Fourth Proportional to 73,073.61, 100,830.74 and 44,378.30

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Solution

The fourth proportional to 73,073.61, 100,830.74 and 44,378.30 is: 61,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,073.61 : 100,830.74 = 44,378.30 : x
  2. Step 2: Convert to fraction form
    73,073.61/100,830.74 = 44,378.30/x
  3. Step 3: Cross multiply
    73,073.61x = 100,830.74 × 44,378.30
  4. Step 4: Simplify right side
    73,073.61x = 4,474,696,859.13
  5. Step 5: Solve for x
    x = 4,474,696,859.13/73,073.61
  6. Step 6: Final answer
    x = 61,235.47

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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.