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Finding the Fourth Proportional to 66,799.33, 92,138.74 and 42,956.17

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Solution

The fourth proportional to 66,799.33, 92,138.74 and 42,956.17 is: 59,251.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,799.33 : 92,138.74 = 42,956.17 : x
  2. Step 2: Convert to fraction form
    66,799.33/92,138.74 = 42,956.17/x
  3. Step 3: Cross multiply
    66,799.33x = 92,138.74 × 42,956.17
  4. Step 4: Simplify right side
    66,799.33x = 3,957,927,041.29
  5. Step 5: Solve for x
    x = 3,957,927,041.29/66,799.33
  6. Step 6: Final answer
    x = 59,251.00

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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.