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Finding the Fourth Proportional to 124,883.84, 172,341.06 and 68,294

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Solution

The fourth proportional to 124,883.84, 172,341.06 and 68,294 is: 94,246.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,883.84 : 172,341.06 = 68,294 : x
  2. Step 2: Convert to fraction form
    124,883.84/172,341.06 = 68,294/x
  3. Step 3: Cross multiply
    124,883.84x = 172,341.06 × 68,294
  4. Step 4: Simplify right side
    124,883.84x = 11,769,860,351.64
  5. Step 5: Solve for x
    x = 11,769,860,351.64/124,883.84
  6. Step 6: Final answer
    x = 94,246.46

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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.