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Finding the Fourth Proportional to 168,609.12, 232,685.28 and 93,162.48

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Solution

The fourth proportional to 168,609.12, 232,685.28 and 93,162.48 is: 128,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,609.12 : 232,685.28 = 93,162.48 : x
  2. Step 2: Convert to fraction form
    168,609.12/232,685.28 = 93,162.48/x
  3. Step 3: Cross multiply
    168,609.12x = 232,685.28 × 93,162.48
  4. Step 4: Simplify right side
    168,609.12x = 21,677,537,744.29
  5. Step 5: Solve for x
    x = 21,677,537,744.29/168,609.12
  6. Step 6: Final answer
    x = 128,566.82

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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.