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Finding the Fourth Proportional to 127,357.86, 190,963.62 and 52,529.52

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Solution

The fourth proportional to 127,357.86, 190,963.62 and 52,529.52 is: 78,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,357.86 : 190,963.62 = 52,529.52 : x
  2. Step 2: Convert to fraction form
    127,357.86/190,963.62 = 52,529.52/x
  3. Step 3: Cross multiply
    127,357.86x = 190,963.62 × 52,529.52
  4. Step 4: Simplify right side
    127,357.86x = 10,031,227,296.06
  5. Step 5: Solve for x
    x = 10,031,227,296.06/127,357.86
  6. Step 6: Final answer
    x = 78,764.10

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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.