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Finding the Fourth Proportional to 101,765.88, 152,641.14 and 51,814.68

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Solution

The fourth proportional to 101,765.88, 152,641.14 and 51,814.68 is: 77,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,765.88 : 152,641.14 = 51,814.68 : x
  2. Step 2: Convert to fraction form
    101,765.88/152,641.14 = 51,814.68/x
  3. Step 3: Cross multiply
    101,765.88x = 152,641.14 × 51,814.68
  4. Step 4: Simplify right side
    101,765.88x = 7,909,051,823.94
  5. Step 5: Solve for x
    x = 7,909,051,823.94/101,765.88
  6. Step 6: Final answer
    x = 77,718.11

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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.