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Finding the Fourth Proportional to 177,209.20, 265,813.80 and 83,897.20

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Solution

The fourth proportional to 177,209.20, 265,813.80 and 83,897.20 is: 125,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,209.20 : 265,813.80 = 83,897.20 : x
  2. Step 2: Convert to fraction form
    177,209.20/265,813.80 = 83,897.20/x
  3. Step 3: Cross multiply
    177,209.20x = 265,813.80 × 83,897.20
  4. Step 4: Simplify right side
    177,209.20x = 22,301,033,541.36
  5. Step 5: Solve for x
    x = 22,301,033,541.36/177,209.20
  6. Step 6: Final answer
    x = 125,845.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.