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Finding the Fourth Proportional to 92,276.30, 137,908.80 and 67,368.80

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Solution

The fourth proportional to 92,276.30, 137,908.80 and 67,368.80 is: 100,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,276.30 : 137,908.80 = 67,368.80 : x
  2. Step 2: Convert to fraction form
    92,276.30/137,908.80 = 67,368.80/x
  3. Step 3: Cross multiply
    92,276.30x = 137,908.80 × 67,368.80
  4. Step 4: Simplify right side
    92,276.30x = 9,290,750,710.21
  5. Step 5: Solve for x
    x = 9,290,750,710.21/92,276.30
  6. Step 6: Final answer
    x = 100,684.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.