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Finding the Fourth Proportional to 89,992.90, 124,206.06 and 51,749.38

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Solution

The fourth proportional to 89,992.90, 124,206.06 and 51,749.38 is: 71,423.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,992.90 : 124,206.06 = 51,749.38 : x
  2. Step 2: Convert to fraction form
    89,992.90/124,206.06 = 51,749.38/x
  3. Step 3: Cross multiply
    89,992.90x = 124,206.06 × 51,749.38
  4. Step 4: Simplify right side
    89,992.90x = 6,427,586,597.24
  5. Step 5: Solve for x
    x = 6,427,586,597.24/89,992.90
  6. Step 6: Final answer
    x = 71,423.26

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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.