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Finding the Fourth Proportional to 296,907.87, 445,326.72 and 83,691.77

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Solution

The fourth proportional to 296,907.87, 445,326.72 and 83,691.77 is: 125,527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,907.87 : 445,326.72 = 83,691.77 : x
  2. Step 2: Convert to fraction form
    296,907.87/445,326.72 = 83,691.77/x
  3. Step 3: Cross multiply
    296,907.87x = 445,326.72 × 83,691.77
  4. Step 4: Simplify right side
    296,907.87x = 37,270,182,538.41
  5. Step 5: Solve for x
    x = 37,270,182,538.41/296,907.87
  6. Step 6: Final answer
    x = 125,527.77

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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.