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Finding the Fourth Proportional to 107,262.55, 148,049.53 and 73,284.78

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Solution

The fourth proportional to 107,262.55, 148,049.53 and 73,284.78 is: 101,151.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,262.55 : 148,049.53 = 73,284.78 : x
  2. Step 2: Convert to fraction form
    107,262.55/148,049.53 = 73,284.78/x
  3. Step 3: Cross multiply
    107,262.55x = 148,049.53 × 73,284.78
  4. Step 4: Simplify right side
    107,262.55x = 10,849,776,873.24
  5. Step 5: Solve for x
    x = 10,849,776,873.24/107,262.55
  6. Step 6: Final answer
    x = 101,151.58

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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.