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Finding the Fourth Proportional to 177,260.40, 265,886.28 and 72,053.28

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Solution

The fourth proportional to 177,260.40, 265,886.28 and 72,053.28 is: 108,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,260.40 : 265,886.28 = 72,053.28 : x
  2. Step 2: Convert to fraction form
    177,260.40/265,886.28 = 72,053.28/x
  3. Step 3: Cross multiply
    177,260.40x = 265,886.28 × 72,053.28
  4. Step 4: Simplify right side
    177,260.40x = 19,157,978,581.00
  5. Step 5: Solve for x
    x = 19,157,978,581.00/177,260.40
  6. Step 6: Final answer
    x = 108,078.16

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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.