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Finding the Fourth Proportional to 92,070.41, 127,074.60 and 57,631.11

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Solution

The fourth proportional to 92,070.41, 127,074.60 and 57,631.11 is: 79,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,070.41 : 127,074.60 = 57,631.11 : x
  2. Step 2: Convert to fraction form
    92,070.41/127,074.60 = 57,631.11/x
  3. Step 3: Cross multiply
    92,070.41x = 127,074.60 × 57,631.11
  4. Step 4: Simplify right side
    92,070.41x = 7,323,450,250.81
  5. Step 5: Solve for x
    x = 7,323,450,250.81/92,070.41
  6. Step 6: Final answer
    x = 79,541.85

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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.