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Finding the Fourth Proportional to 92,164.70, 138,246.12 and 42,230.63

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Solution

The fourth proportional to 92,164.70, 138,246.12 and 42,230.63 is: 63,345.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,164.70 : 138,246.12 = 42,230.63 : x
  2. Step 2: Convert to fraction form
    92,164.70/138,246.12 = 42,230.63/x
  3. Step 3: Cross multiply
    92,164.70x = 138,246.12 × 42,230.63
  4. Step 4: Simplify right side
    92,164.70x = 5,838,220,742.66
  5. Step 5: Solve for x
    x = 5,838,220,742.66/92,164.70
  6. Step 6: Final answer
    x = 63,345.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.