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Finding the Fourth Proportional to 124,838.93, 172,277.69 and 68,250.30

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Solution

The fourth proportional to 124,838.93, 172,277.69 and 68,250.30 is: 94,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,838.93 : 172,277.69 = 68,250.30 : x
  2. Step 2: Convert to fraction form
    124,838.93/172,277.69 = 68,250.30/x
  3. Step 3: Cross multiply
    124,838.93x = 172,277.69 × 68,250.30
  4. Step 4: Simplify right side
    124,838.93x = 11,758,003,684.56
  5. Step 5: Solve for x
    x = 11,758,003,684.56/124,838.93
  6. Step 6: Final answer
    x = 94,185.40

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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.