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Finding the Fourth Proportional to 73,404.80, 110,020.80 and 38,326.40

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Solution

The fourth proportional to 73,404.80, 110,020.80 and 38,326.40 is: 57,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,404.80 : 110,020.80 = 38,326.40 : x
  2. Step 2: Convert to fraction form
    73,404.80/110,020.80 = 38,326.40/x
  3. Step 3: Cross multiply
    73,404.80x = 110,020.80 × 38,326.40
  4. Step 4: Simplify right side
    73,404.80x = 4,216,701,189.12
  5. Step 5: Solve for x
    x = 4,216,701,189.12/73,404.80
  6. Step 6: Final answer
    x = 57,444.49

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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.