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Finding the Fourth Proportional to 223,172.76, 308,031.52 and 127,734.52

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Solution

The fourth proportional to 223,172.76, 308,031.52 and 127,734.52 is: 176,304.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,172.76 : 308,031.52 = 127,734.52 : x
  2. Step 2: Convert to fraction form
    223,172.76/308,031.52 = 127,734.52/x
  3. Step 3: Cross multiply
    223,172.76x = 308,031.52 × 127,734.52
  4. Step 4: Simplify right side
    223,172.76x = 39,346,258,352.07
  5. Step 5: Solve for x
    x = 39,346,258,352.07/223,172.76
  6. Step 6: Final answer
    x = 176,304.04

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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.