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Finding the Fourth Proportional to 86,760.48, 119,743.04 and 52,779.52

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Solution

The fourth proportional to 86,760.48, 119,743.04 and 52,779.52 is: 72,844.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,760.48 : 119,743.04 = 52,779.52 : x
  2. Step 2: Convert to fraction form
    86,760.48/119,743.04 = 52,779.52/x
  3. Step 3: Cross multiply
    86,760.48x = 119,743.04 × 52,779.52
  4. Step 4: Simplify right side
    86,760.48x = 6,319,980,174.54
  5. Step 5: Solve for x
    x = 6,319,980,174.54/86,760.48
  6. Step 6: Final answer
    x = 72,844.00

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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.