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Finding the Fourth Proportional to 92,967.35, 128,273.76 and 52,671.87

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Solution

The fourth proportional to 92,967.35, 128,273.76 and 52,671.87 is: 72,675.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,967.35 : 128,273.76 = 52,671.87 : x
  2. Step 2: Convert to fraction form
    92,967.35/128,273.76 = 52,671.87/x
  3. Step 3: Cross multiply
    92,967.35x = 128,273.76 × 52,671.87
  4. Step 4: Simplify right side
    92,967.35x = 6,756,418,811.13
  5. Step 5: Solve for x
    x = 6,756,418,811.13/92,967.35
  6. Step 6: Final answer
    x = 72,675.18

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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.