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Finding the Fourth Proportional to 175,097.80, 262,344.30 and 81,411.40

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Solution

The fourth proportional to 175,097.80, 262,344.30 and 81,411.40 is: 121,976.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,097.80 : 262,344.30 = 81,411.40 : x
  2. Step 2: Convert to fraction form
    175,097.80/262,344.30 = 81,411.40/x
  3. Step 3: Cross multiply
    175,097.80x = 262,344.30 × 81,411.40
  4. Step 4: Simplify right side
    175,097.80x = 21,357,816,745.02
  5. Step 5: Solve for x
    x = 21,357,816,745.02/175,097.80
  6. Step 6: Final answer
    x = 121,976.50

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1.5x scale

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.