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Finding the Fourth Proportional to 92,153.76, 127,172.42 and 51,868.12

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Solution

The fourth proportional to 92,153.76, 127,172.42 and 51,868.12 is: 71,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,153.76 : 127,172.42 = 51,868.12 : x
  2. Step 2: Convert to fraction form
    92,153.76/127,172.42 = 51,868.12/x
  3. Step 3: Cross multiply
    92,153.76x = 127,172.42 × 51,868.12
  4. Step 4: Simplify right side
    92,153.76x = 6,596,194,341.25
  5. Step 5: Solve for x
    x = 6,596,194,341.25/92,153.76
  6. Step 6: Final answer
    x = 71,578.14

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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.