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Finding the Fourth Proportional to 89,973, 124,162.74 and 50,229

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Solution

The fourth proportional to 89,973, 124,162.74 and 50,229 is: 69,316.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,973 : 124,162.74 = 50,229 : x
  2. Step 2: Convert to fraction form
    89,973/124,162.74 = 50,229/x
  3. Step 3: Cross multiply
    89,973x = 124,162.74 × 50,229
  4. Step 4: Simplify right side
    89,973x = 6,236,570,267.46
  5. Step 5: Solve for x
    x = 6,236,570,267.46/89,973
  6. Step 6: Final answer
    x = 69,316.02

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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.