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Finding the Fourth Proportional to 127,415.80, 175,818.54 and 70,045.66

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Solution

The fourth proportional to 127,415.80, 175,818.54 and 70,045.66 is: 96,654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,415.80 : 175,818.54 = 70,045.66 : x
  2. Step 2: Convert to fraction form
    127,415.80/175,818.54 = 70,045.66/x
  3. Step 3: Cross multiply
    127,415.80x = 175,818.54 × 70,045.66
  4. Step 4: Simplify right side
    127,415.80x = 12,315,325,674.54
  5. Step 5: Solve for x
    x = 12,315,325,674.54/127,415.80
  6. Step 6: Final answer
    x = 96,654.62

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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.