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Finding the Fourth Proportional to 162,891.51, 224,787.47 and 91,271.31

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Solution

The fourth proportional to 162,891.51, 224,787.47 and 91,271.31 is: 125,952.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,891.51 : 224,787.47 = 91,271.31 : x
  2. Step 2: Convert to fraction form
    162,891.51/224,787.47 = 91,271.31/x
  3. Step 3: Cross multiply
    162,891.51x = 224,787.47 × 91,271.31
  4. Step 4: Simplify right side
    162,891.51x = 20,516,646,402.13
  5. Step 5: Solve for x
    x = 20,516,646,402.13/162,891.51
  6. Step 6: Final answer
    x = 125,952.83

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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.