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Finding the Fourth Proportional to 235,763.67, 353,645.63 and 77,992.13

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Solution

The fourth proportional to 235,763.67, 353,645.63 and 77,992.13 is: 116,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,763.67 : 353,645.63 = 77,992.13 : x
  2. Step 2: Convert to fraction form
    235,763.67/353,645.63 = 77,992.13/x
  3. Step 3: Cross multiply
    235,763.67x = 353,645.63 × 77,992.13
  4. Step 4: Simplify right side
    235,763.67x = 27,581,574,526.91
  5. Step 5: Solve for x
    x = 27,581,574,526.91/235,763.67
  6. Step 6: Final answer
    x = 116,988.23

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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.