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Finding the Fourth Proportional to 92,984.68, 128,314.72 and 52,696.08

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Solution

The fourth proportional to 92,984.68, 128,314.72 and 52,696.08 is: 72,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,984.68 : 128,314.72 = 52,696.08 : x
  2. Step 2: Convert to fraction form
    92,984.68/128,314.72 = 52,696.08/x
  3. Step 3: Cross multiply
    92,984.68x = 128,314.72 × 52,696.08
  4. Step 4: Simplify right side
    92,984.68x = 6,761,682,750.30
  5. Step 5: Solve for x
    x = 6,761,682,750.30/92,984.68
  6. Step 6: Final answer
    x = 72,718.25

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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.