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Finding the Fourth Proportional to 121,482.80, 182,569.80 and 106,276.40

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Solution

The fourth proportional to 121,482.80, 182,569.80 and 106,276.40 is: 159,716.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,482.80 : 182,569.80 = 106,276.40 : x
  2. Step 2: Convert to fraction form
    121,482.80/182,569.80 = 106,276.40/x
  3. Step 3: Cross multiply
    121,482.80x = 182,569.80 × 106,276.40
  4. Step 4: Simplify right side
    121,482.80x = 19,402,861,092.72
  5. Step 5: Solve for x
    x = 19,402,861,092.72/121,482.80
  6. Step 6: Final answer
    x = 159,716.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.