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Finding the Fourth Proportional to 171,225.72, 236,309.28 and 98,631.12

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Solution

The fourth proportional to 171,225.72, 236,309.28 and 98,631.12 is: 136,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,225.72 : 236,309.28 = 98,631.12 : x
  2. Step 2: Convert to fraction form
    171,225.72/236,309.28 = 98,631.12/x
  3. Step 3: Cross multiply
    171,225.72x = 236,309.28 × 98,631.12
  4. Step 4: Simplify right side
    171,225.72x = 23,307,448,952.79
  5. Step 5: Solve for x
    x = 23,307,448,952.79/171,225.72
  6. Step 6: Final answer
    x = 136,121.19

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1.5x scale

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.