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Finding the Fourth Proportional to 295,681.69, 408,113.63 and 168,432.31

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Solution

The fourth proportional to 295,681.69, 408,113.63 and 168,432.31 is: 232,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,681.69 : 408,113.63 = 168,432.31 : x
  2. Step 2: Convert to fraction form
    295,681.69/408,113.63 = 168,432.31/x
  3. Step 3: Cross multiply
    295,681.69x = 408,113.63 × 168,432.31
  4. Step 4: Simplify right side
    295,681.69x = 68,739,520,844.18
  5. Step 5: Solve for x
    x = 68,739,520,844.18/295,681.69
  6. Step 6: Final answer
    x = 232,478.11

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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.