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Finding the Fourth Proportional to 73,314.25, 101,173.62 and 39,780.25

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Solution

The fourth proportional to 73,314.25, 101,173.62 and 39,780.25 is: 54,896.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,314.25 : 101,173.62 = 39,780.25 : x
  2. Step 2: Convert to fraction form
    73,314.25/101,173.62 = 39,780.25/x
  3. Step 3: Cross multiply
    73,314.25x = 101,173.62 × 39,780.25
  4. Step 4: Simplify right side
    73,314.25x = 4,024,711,897.01
  5. Step 5: Solve for x
    x = 4,024,711,897.01/73,314.25
  6. Step 6: Final answer
    x = 54,896.72

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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.