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Finding the Fourth Proportional to 175,036.80, 262,117.80 and 115,550.40

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Solution

The fourth proportional to 175,036.80, 262,117.80 and 115,550.40 is: 173,036.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,036.80 : 262,117.80 = 115,550.40 : x
  2. Step 2: Convert to fraction form
    175,036.80/262,117.80 = 115,550.40/x
  3. Step 3: Cross multiply
    175,036.80x = 262,117.80 × 115,550.40
  4. Step 4: Simplify right side
    175,036.80x = 30,287,816,637.12
  5. Step 5: Solve for x
    x = 30,287,816,637.12/175,036.80
  6. Step 6: Final answer
    x = 173,036.85

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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.