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Finding the Fourth Proportional to 101,694.73, 140,347.11 and 56,386.93

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Solution

The fourth proportional to 101,694.73, 140,347.11 and 56,386.93 is: 77,818.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,694.73 : 140,347.11 = 56,386.93 : x
  2. Step 2: Convert to fraction form
    101,694.73/140,347.11 = 56,386.93/x
  3. Step 3: Cross multiply
    101,694.73x = 140,347.11 × 56,386.93
  4. Step 4: Simplify right side
    101,694.73x = 7,913,742,667.27
  5. Step 5: Solve for x
    x = 7,913,742,667.27/101,694.73
  6. Step 6: Final answer
    x = 77,818.61

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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.