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Finding the Fourth Proportional to 73,290.09, 101,140.14 and 39,756.09

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Solution

The fourth proportional to 73,290.09, 101,140.14 and 39,756.09 is: 54,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,290.09 : 101,140.14 = 39,756.09 : x
  2. Step 2: Convert to fraction form
    73,290.09/101,140.14 = 39,756.09/x
  3. Step 3: Cross multiply
    73,290.09x = 101,140.14 × 39,756.09
  4. Step 4: Simplify right side
    73,290.09x = 4,020,936,508.45
  5. Step 5: Solve for x
    x = 4,020,936,508.45/73,290.09
  6. Step 6: Final answer
    x = 54,863.30

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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.