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Finding the Fourth Proportional to 67,390.80, 101,037.60 and 44,030.40

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Solution

The fourth proportional to 67,390.80, 101,037.60 and 44,030.40 is: 66,013.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,390.80 : 101,037.60 = 44,030.40 : x
  2. Step 2: Convert to fraction form
    67,390.80/101,037.60 = 44,030.40/x
  3. Step 3: Cross multiply
    67,390.80x = 101,037.60 × 44,030.40
  4. Step 4: Simplify right side
    67,390.80x = 4,448,725,943.04
  5. Step 5: Solve for x
    x = 4,448,725,943.04/67,390.80
  6. Step 6: Final answer
    x = 66,013.85

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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.