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Finding the Fourth Proportional to 123,407.76, 184,058.72 and 121,275.44

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Solution

The fourth proportional to 123,407.76, 184,058.72 and 121,275.44 is: 180,878.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,407.76 : 184,058.72 = 121,275.44 : x
  2. Step 2: Convert to fraction form
    123,407.76/184,058.72 = 121,275.44/x
  3. Step 3: Cross multiply
    123,407.76x = 184,058.72 × 121,275.44
  4. Step 4: Simplify right side
    123,407.76x = 22,321,802,253.84
  5. Step 5: Solve for x
    x = 22,321,802,253.84/123,407.76
  6. Step 6: Final answer
    x = 180,878.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.