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Finding the Fourth Proportional to 127,590.66, 191,261.82 and 61,013.52

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Solution

The fourth proportional to 127,590.66, 191,261.82 and 61,013.52 is: 91,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,590.66 : 191,261.82 = 61,013.52 : x
  2. Step 2: Convert to fraction form
    127,590.66/191,261.82 = 61,013.52/x
  3. Step 3: Cross multiply
    127,590.66x = 191,261.82 × 61,013.52
  4. Step 4: Simplify right side
    127,590.66x = 11,669,556,879.81
  5. Step 5: Solve for x
    x = 11,669,556,879.81/127,590.66
  6. Step 6: Final answer
    x = 91,460.90

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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.