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Finding the Fourth Proportional to 168,829.01, 232,990.13 and 93,378.05

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Solution

The fourth proportional to 168,829.01, 232,990.13 and 93,378.05 is: 128,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,829.01 : 232,990.13 = 93,378.05 : x
  2. Step 2: Convert to fraction form
    168,829.01/232,990.13 = 93,378.05/x
  3. Step 3: Cross multiply
    168,829.01x = 232,990.13 × 93,378.05
  4. Step 4: Simplify right side
    168,829.01x = 21,756,164,008.65
  5. Step 5: Solve for x
    x = 21,756,164,008.65/168,829.01
  6. Step 6: Final answer
    x = 128,865.08

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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.