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Finding the Fourth Proportional to 92,048.12, 127,069.20 and 69,396.32

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Solution

The fourth proportional to 92,048.12, 127,069.20 and 69,396.32 is: 95,799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,048.12 : 127,069.20 = 69,396.32 : x
  2. Step 2: Convert to fraction form
    92,048.12/127,069.20 = 69,396.32/x
  3. Step 3: Cross multiply
    92,048.12x = 127,069.20 × 69,396.32
  4. Step 4: Simplify right side
    92,048.12x = 8,818,134,865.34
  5. Step 5: Solve for x
    x = 8,818,134,865.34/92,048.12
  6. Step 6: Final answer
    x = 95,799.18

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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.