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Finding the Fourth Proportional to 99,953.84, 137,895.03 and 69,756.68

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Solution

The fourth proportional to 99,953.84, 137,895.03 and 69,756.68 is: 96,235.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,953.84 : 137,895.03 = 69,756.68 : x
  2. Step 2: Convert to fraction form
    99,953.84/137,895.03 = 69,756.68/x
  3. Step 3: Cross multiply
    99,953.84x = 137,895.03 × 69,756.68
  4. Step 4: Simplify right side
    99,953.84x = 9,619,098,791.83
  5. Step 5: Solve for x
    x = 9,619,098,791.83/99,953.84
  6. Step 6: Final answer
    x = 96,235.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.