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Finding the Fourth Proportional to 310,848.80, 428,966.60 and 174,882.69

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Solution

The fourth proportional to 310,848.80, 428,966.60 and 174,882.69 is: 241,335.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,848.80 : 428,966.60 = 174,882.69 : x
  2. Step 2: Convert to fraction form
    310,848.80/428,966.60 = 174,882.69/x
  3. Step 3: Cross multiply
    310,848.80x = 428,966.60 × 174,882.69
  4. Step 4: Simplify right side
    310,848.80x = 75,018,832,053.74
  5. Step 5: Solve for x
    x = 75,018,832,053.74/310,848.80
  6. Step 6: Final answer
    x = 241,335.44

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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.