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Finding the Fourth Proportional to 92,434.91, 138,287.55 and 70,010.20

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Solution

The fourth proportional to 92,434.91, 138,287.55 and 70,010.20 is: 104,738.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,434.91 : 138,287.55 = 70,010.20 : x
  2. Step 2: Convert to fraction form
    92,434.91/138,287.55 = 70,010.20/x
  3. Step 3: Cross multiply
    92,434.91x = 138,287.55 × 70,010.20
  4. Step 4: Simplify right side
    92,434.91x = 9,681,539,033.01
  5. Step 5: Solve for x
    x = 9,681,539,033.01/92,434.91
  6. Step 6: Final answer
    x = 104,738.99

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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.