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Finding the Fourth Proportional to 74,037.76, 111,065.28 and 74,037.76

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Solution

The fourth proportional to 74,037.76, 111,065.28 and 74,037.76 is: 111,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,037.76 : 111,065.28 = 74,037.76 : x
  2. Step 2: Convert to fraction form
    74,037.76/111,065.28 = 74,037.76/x
  3. Step 3: Cross multiply
    74,037.76x = 111,065.28 × 74,037.76
  4. Step 4: Simplify right side
    74,037.76x = 8,223,024,544.97
  5. Step 5: Solve for x
    x = 8,223,024,544.97/74,037.76
  6. Step 6: Final answer
    x = 111,065.28

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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.