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Finding the Fourth Proportional to 109,577.80, 164,366.70 and 62,921.80

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Solution

The fourth proportional to 109,577.80, 164,366.70 and 62,921.80 is: 94,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,577.80 : 164,366.70 = 62,921.80 : x
  2. Step 2: Convert to fraction form
    109,577.80/164,366.70 = 62,921.80/x
  3. Step 3: Cross multiply
    109,577.80x = 164,366.70 × 62,921.80
  4. Step 4: Simplify right side
    109,577.80x = 10,342,248,624.06
  5. Step 5: Solve for x
    x = 10,342,248,624.06/109,577.80
  6. Step 6: Final answer
    x = 94,382.70

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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.