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Finding the Fourth Proportional to 235,468.80, 352,758.74 and 139,118.52

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Solution

The fourth proportional to 235,468.80, 352,758.74 and 139,118.52 is: 208,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,468.80 : 352,758.74 = 139,118.52 : x
  2. Step 2: Convert to fraction form
    235,468.80/352,758.74 = 139,118.52/x
  3. Step 3: Cross multiply
    235,468.80x = 352,758.74 × 139,118.52
  4. Step 4: Simplify right side
    235,468.80x = 49,075,273,651.97
  5. Step 5: Solve for x
    x = 49,075,273,651.97/235,468.80
  6. Step 6: Final answer
    x = 208,415.19

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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.