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Finding the Fourth Proportional to 92,662.80, 138,886.80 and 42,637.92

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Solution

The fourth proportional to 92,662.80, 138,886.80 and 42,637.92 is: 63,907.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,662.80 : 138,886.80 = 42,637.92 : x
  2. Step 2: Convert to fraction form
    92,662.80/138,886.80 = 42,637.92/x
  3. Step 3: Cross multiply
    92,662.80x = 138,886.80 × 42,637.92
  4. Step 4: Simplify right side
    92,662.80x = 5,921,844,267.46
  5. Step 5: Solve for x
    x = 5,921,844,267.46/92,662.80
  6. Step 6: Final answer
    x = 63,907.46

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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.