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Finding the Fourth Proportional to 73,319.47, 101,180.51 and 39,785.47

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Solution

The fourth proportional to 73,319.47, 101,180.51 and 39,785.47 is: 54,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,319.47 : 101,180.51 = 39,785.47 : x
  2. Step 2: Convert to fraction form
    73,319.47/101,180.51 = 39,785.47/x
  3. Step 3: Cross multiply
    73,319.47x = 101,180.51 × 39,785.47
  4. Step 4: Simplify right side
    73,319.47x = 4,025,513,842.51
  5. Step 5: Solve for x
    x = 4,025,513,842.51/73,319.47
  6. Step 6: Final answer
    x = 54,903.75

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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.