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Finding the Fourth Proportional to 106,554.53, 147,064.31 and 63,536.79

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Solution

The fourth proportional to 106,554.53, 147,064.31 and 63,536.79 is: 87,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,554.53 : 147,064.31 = 63,536.79 : x
  2. Step 2: Convert to fraction form
    106,554.53/147,064.31 = 63,536.79/x
  3. Step 3: Cross multiply
    106,554.53x = 147,064.31 × 63,536.79
  4. Step 4: Simplify right side
    106,554.53x = 9,343,993,863.28
  5. Step 5: Solve for x
    x = 9,343,993,863.28/106,554.53
  6. Step 6: Final answer
    x = 87,692.14

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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.