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Finding the Fourth Proportional to 127,295.80, 190,652.85 and 60,782.51

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Solution

The fourth proportional to 127,295.80, 190,652.85 and 60,782.51 is: 91,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,295.80 : 190,652.85 = 60,782.51 : x
  2. Step 2: Convert to fraction form
    127,295.80/190,652.85 = 60,782.51/x
  3. Step 3: Cross multiply
    127,295.80x = 190,652.85 × 60,782.51
  4. Step 4: Simplify right side
    127,295.80x = 11,588,359,238.29
  5. Step 5: Solve for x
    x = 11,588,359,238.29/127,295.80
  6. Step 6: Final answer
    x = 91,034.89

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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.