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Finding the Fourth Proportional to 235,672.48, 353,564.09 and 77,900.93

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Solution

The fourth proportional to 235,672.48, 353,564.09 and 77,900.93 is: 116,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,672.48 : 353,564.09 = 77,900.93 : x
  2. Step 2: Convert to fraction form
    235,672.48/353,564.09 = 77,900.93/x
  3. Step 3: Cross multiply
    235,672.48x = 353,564.09 × 77,900.93
  4. Step 4: Simplify right side
    235,672.48x = 27,542,971,425.60
  5. Step 5: Solve for x
    x = 27,542,971,425.60/235,672.48
  6. Step 6: Final answer
    x = 116,869.70

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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.