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Finding the Fourth Proportional to 126,851.52, 175,054.80 and 70,262.64

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Solution

The fourth proportional to 126,851.52, 175,054.80 and 70,262.64 is: 96,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,851.52 : 175,054.80 = 70,262.64 : x
  2. Step 2: Convert to fraction form
    126,851.52/175,054.80 = 70,262.64/x
  3. Step 3: Cross multiply
    126,851.52x = 175,054.80 × 70,262.64
  4. Step 4: Simplify right side
    126,851.52x = 12,299,812,392.67
  5. Step 5: Solve for x
    x = 12,299,812,392.67/126,851.52
  6. Step 6: Final answer
    x = 96,962.28

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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.