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Finding the Fourth Proportional to 92,681.70, 127,868.67 and 54,968.10

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Solution

The fourth proportional to 92,681.70, 127,868.67 and 54,968.10 is: 75,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,681.70 : 127,868.67 = 54,968.10 : x
  2. Step 2: Convert to fraction form
    92,681.70/127,868.67 = 54,968.10/x
  3. Step 3: Cross multiply
    92,681.70x = 127,868.67 × 54,968.10
  4. Step 4: Simplify right side
    92,681.70x = 7,028,697,839.43
  5. Step 5: Solve for x
    x = 7,028,697,839.43/92,681.70
  6. Step 6: Final answer
    x = 75,836.95

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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.