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Finding the Fourth Proportional to 73,866.93, 110,767.58 and 21,264.11

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Solution

The fourth proportional to 73,866.93, 110,767.58 and 21,264.11 is: 31,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,866.93 : 110,767.58 = 21,264.11 : x
  2. Step 2: Convert to fraction form
    73,866.93/110,767.58 = 21,264.11/x
  3. Step 3: Cross multiply
    73,866.93x = 110,767.58 × 21,264.11
  4. Step 4: Simplify right side
    73,866.93x = 2,355,374,005.55
  5. Step 5: Solve for x
    x = 2,355,374,005.55/73,866.93
  6. Step 6: Final answer
    x = 31,886.72

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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.