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Finding the Fourth Proportional to 168,693.12, 232,806.32 and 93,248.64

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Solution

The fourth proportional to 168,693.12, 232,806.32 and 93,248.64 is: 128,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,693.12 : 232,806.32 = 93,248.64 : x
  2. Step 2: Convert to fraction form
    168,693.12/232,806.32 = 93,248.64/x
  3. Step 3: Cross multiply
    168,693.12x = 232,806.32 × 93,248.64
  4. Step 4: Simplify right side
    168,693.12x = 21,708,872,723.40
  5. Step 5: Solve for x
    x = 21,708,872,723.40/168,693.12
  6. Step 6: Final answer
    x = 128,688.55

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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.