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Finding the Fourth Proportional to 137,152.67, 205,727.52 and 104,075.87

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Solution

The fourth proportional to 137,152.67, 205,727.52 and 104,075.87 is: 156,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,152.67 : 205,727.52 = 104,075.87 : x
  2. Step 2: Convert to fraction form
    137,152.67/205,727.52 = 104,075.87/x
  3. Step 3: Cross multiply
    137,152.67x = 205,727.52 × 104,075.87
  4. Step 4: Simplify right side
    137,152.67x = 21,411,270,626.94
  5. Step 5: Solve for x
    x = 21,411,270,626.94/137,152.67
  6. Step 6: Final answer
    x = 156,112.68

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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.