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Finding the Fourth Proportional to 272,603.10, 375,979.14 and 177,140.46

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Solution

The fourth proportional to 272,603.10, 375,979.14 and 177,140.46 is: 244,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,603.10 : 375,979.14 = 177,140.46 : x
  2. Step 2: Convert to fraction form
    272,603.10/375,979.14 = 177,140.46/x
  3. Step 3: Cross multiply
    272,603.10x = 375,979.14 × 177,140.46
  4. Step 4: Simplify right side
    272,603.10x = 66,601,117,810.00
  5. Step 5: Solve for x
    x = 66,601,117,810.00/272,603.10
  6. Step 6: Final answer
    x = 244,315.34

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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.