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Finding the Fourth Proportional to 77,007.76, 106,230.90 and 48,729.85

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Solution

The fourth proportional to 77,007.76, 106,230.90 and 48,729.85 is: 67,222.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,007.76 : 106,230.90 = 48,729.85 : x
  2. Step 2: Convert to fraction form
    77,007.76/106,230.90 = 48,729.85/x
  3. Step 3: Cross multiply
    77,007.76x = 106,230.90 × 48,729.85
  4. Step 4: Simplify right side
    77,007.76x = 5,176,615,944.19
  5. Step 5: Solve for x
    x = 5,176,615,944.19/77,007.76
  6. Step 6: Final answer
    x = 67,222.00

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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.