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Finding the Fourth Proportional to 147,339.68, 203,321.74 and 83,668.84

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Solution

The fourth proportional to 147,339.68, 203,321.74 and 83,668.84 is: 115,459.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,339.68 : 203,321.74 = 83,668.84 : x
  2. Step 2: Convert to fraction form
    147,339.68/203,321.74 = 83,668.84/x
  3. Step 3: Cross multiply
    147,339.68x = 203,321.74 × 83,668.84
  4. Step 4: Simplify right side
    147,339.68x = 17,011,694,132.58
  5. Step 5: Solve for x
    x = 17,011,694,132.58/147,339.68
  6. Step 6: Final answer
    x = 115,459.01

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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.