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Finding the Fourth Proportional to 147,475.63, 221,434.98 and 84,367

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Solution

The fourth proportional to 147,475.63, 221,434.98 and 84,367 is: 126,677.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,475.63 : 221,434.98 = 84,367 : x
  2. Step 2: Convert to fraction form
    147,475.63/221,434.98 = 84,367/x
  3. Step 3: Cross multiply
    147,475.63x = 221,434.98 × 84,367
  4. Step 4: Simplify right side
    147,475.63x = 18,681,804,957.66
  5. Step 5: Solve for x
    x = 18,681,804,957.66/147,475.63
  6. Step 6: Final answer
    x = 126,677.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.