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Finding the Fourth Proportional to 124,752, 172,161.54 and 68,167.02

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Solution

The fourth proportional to 124,752, 172,161.54 and 68,167.02 is: 94,072.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,752 : 172,161.54 = 68,167.02 : x
  2. Step 2: Convert to fraction form
    124,752/172,161.54 = 68,167.02/x
  3. Step 3: Cross multiply
    124,752x = 172,161.54 × 68,167.02
  4. Step 4: Simplify right side
    124,752x = 11,735,739,140.41
  5. Step 5: Solve for x
    x = 11,735,739,140.41/124,752
  6. Step 6: Final answer
    x = 94,072.55

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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.