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Finding the Fourth Proportional to 127,248.80, 190,895.16 and 43,009.52

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Solution

The fourth proportional to 127,248.80, 190,895.16 and 43,009.52 is: 64,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,248.80 : 190,895.16 = 43,009.52 : x
  2. Step 2: Convert to fraction form
    127,248.80/190,895.16 = 43,009.52/x
  3. Step 3: Cross multiply
    127,248.80x = 190,895.16 × 43,009.52
  4. Step 4: Simplify right side
    127,248.80x = 8,210,309,201.92
  5. Step 5: Solve for x
    x = 8,210,309,201.92/127,248.80
  6. Step 6: Final answer
    x = 64,521.70

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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.