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Finding the Fourth Proportional to 168,591.61, 251,657.52 and 147,309.74

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Solution

The fourth proportional to 168,591.61, 251,657.52 and 147,309.74 is: 219,889.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,591.61 : 251,657.52 = 147,309.74 : x
  2. Step 2: Convert to fraction form
    168,591.61/251,657.52 = 147,309.74/x
  3. Step 3: Cross multiply
    168,591.61x = 251,657.52 × 147,309.74
  4. Step 4: Simplify right side
    168,591.61x = 37,071,602,973.26
  5. Step 5: Solve for x
    x = 37,071,602,973.26/168,591.61
  6. Step 6: Final answer
    x = 219,889.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.