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Finding the Fourth Proportional to 61,126.40, 91,819.20 and 58,923.20

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Solution

The fourth proportional to 61,126.40, 91,819.20 and 58,923.20 is: 88,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,126.40 : 91,819.20 = 58,923.20 : x
  2. Step 2: Convert to fraction form
    61,126.40/91,819.20 = 58,923.20/x
  3. Step 3: Cross multiply
    61,126.40x = 91,819.20 × 58,923.20
  4. Step 4: Simplify right side
    61,126.40x = 5,410,281,085.44
  5. Step 5: Solve for x
    x = 5,410,281,085.44/61,126.40
  6. Step 6: Final answer
    x = 88,509.73

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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.