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Finding the Fourth Proportional to 68,332.61, 102,528.52 and 36,705.77

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Solution

The fourth proportional to 68,332.61, 102,528.52 and 36,705.77 is: 55,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,332.61 : 102,528.52 = 36,705.77 : x
  2. Step 2: Convert to fraction form
    68,332.61/102,528.52 = 36,705.77/x
  3. Step 3: Cross multiply
    68,332.61x = 102,528.52 × 36,705.77
  4. Step 4: Simplify right side
    68,332.61x = 3,763,388,053.64
  5. Step 5: Solve for x
    x = 3,763,388,053.64/68,332.61
  6. Step 6: Final answer
    x = 55,074.55

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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.