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Finding the Fourth Proportional to 228,081.93, 314,745.15 and 124,718.55

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Solution

The fourth proportional to 228,081.93, 314,745.15 and 124,718.55 is: 172,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,081.93 : 314,745.15 = 124,718.55 : x
  2. Step 2: Convert to fraction form
    228,081.93/314,745.15 = 124,718.55/x
  3. Step 3: Cross multiply
    228,081.93x = 314,745.15 × 124,718.55
  4. Step 4: Simplify right side
    228,081.93x = 39,254,558,727.53
  5. Step 5: Solve for x
    x = 39,254,558,727.53/228,081.93
  6. Step 6: Final answer
    x = 172,107.27

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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.