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Finding the Fourth Proportional to 92,408.40, 127,522.80 and 49,966.56

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Solution

The fourth proportional to 92,408.40, 127,522.80 and 49,966.56 is: 68,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,408.40 : 127,522.80 = 49,966.56 : x
  2. Step 2: Convert to fraction form
    92,408.40/127,522.80 = 49,966.56/x
  3. Step 3: Cross multiply
    92,408.40x = 127,522.80 × 49,966.56
  4. Step 4: Simplify right side
    92,408.40x = 6,371,875,637.57
  5. Step 5: Solve for x
    x = 6,371,875,637.57/92,408.40
  6. Step 6: Final answer
    x = 68,953.42

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1.5x scale

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.