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Finding the Fourth Proportional to 107,707.68, 148,674.96 and 77,510.88

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Solution

The fourth proportional to 107,707.68, 148,674.96 and 77,510.88 is: 106,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,707.68 : 148,674.96 = 77,510.88 : x
  2. Step 2: Convert to fraction form
    107,707.68/148,674.96 = 77,510.88/x
  3. Step 3: Cross multiply
    107,707.68x = 148,674.96 × 77,510.88
  4. Step 4: Simplify right side
    107,707.68x = 11,523,926,983.56
  5. Step 5: Solve for x
    x = 11,523,926,983.56/107,707.68
  6. Step 6: Final answer
    x = 106,992.62

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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.