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Finding the Fourth Proportional to 171,816, 237,209.76 and 112,303.68

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Solution

The fourth proportional to 171,816, 237,209.76 and 112,303.68 is: 155,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,816 : 237,209.76 = 112,303.68 : x
  2. Step 2: Convert to fraction form
    171,816/237,209.76 = 112,303.68/x
  3. Step 3: Cross multiply
    171,816x = 237,209.76 × 112,303.68
  4. Step 4: Simplify right side
    171,816x = 26,639,528,979.92
  5. Step 5: Solve for x
    x = 26,639,528,979.92/171,816
  6. Step 6: Final answer
    x = 155,046.85

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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.