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Finding the Fourth Proportional to 73,443.64, 101,352.48 and 39,909.64

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Solution

The fourth proportional to 73,443.64, 101,352.48 and 39,909.64 is: 55,075.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,443.64 : 101,352.48 = 39,909.64 : x
  2. Step 2: Convert to fraction form
    73,443.64/101,352.48 = 39,909.64/x
  3. Step 3: Cross multiply
    73,443.64x = 101,352.48 × 39,909.64
  4. Step 4: Simplify right side
    73,443.64x = 4,044,940,989.91
  5. Step 5: Solve for x
    x = 4,044,940,989.91/73,443.64
  6. Step 6: Final answer
    x = 55,075.44

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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.