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Finding the Fourth Proportional to 172,603.71, 238,266.77 and 116,047.89

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Solution

The fourth proportional to 172,603.71, 238,266.77 and 116,047.89 is: 160,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,603.71 : 238,266.77 = 116,047.89 : x
  2. Step 2: Convert to fraction form
    172,603.71/238,266.77 = 116,047.89/x
  3. Step 3: Cross multiply
    172,603.71x = 238,266.77 × 116,047.89
  4. Step 4: Simplify right side
    172,603.71x = 27,650,355,335.38
  5. Step 5: Solve for x
    x = 27,650,355,335.38/172,603.71
  6. Step 6: Final answer
    x = 160,195.60

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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.