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Finding the Fourth Proportional to 107,497.88, 148,362.04 and 77,382.88

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Solution

The fourth proportional to 107,497.88, 148,362.04 and 77,382.88 is: 106,799.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,497.88 : 148,362.04 = 77,382.88 : x
  2. Step 2: Convert to fraction form
    107,497.88/148,362.04 = 77,382.88/x
  3. Step 3: Cross multiply
    107,497.88x = 148,362.04 × 77,382.88
  4. Step 4: Simplify right side
    107,497.88x = 11,480,681,937.88
  5. Step 5: Solve for x
    x = 11,480,681,937.88/107,497.88
  6. Step 6: Final answer
    x = 106,799.15

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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.