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Finding the Fourth Proportional to 135,314.01, 202,948.95 and 45,396.51

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Solution

The fourth proportional to 135,314.01, 202,948.95 and 45,396.51 is: 68,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,314.01 : 202,948.95 = 45,396.51 : x
  2. Step 2: Convert to fraction form
    135,314.01/202,948.95 = 45,396.51/x
  3. Step 3: Cross multiply
    135,314.01x = 202,948.95 × 45,396.51
  4. Step 4: Simplify right side
    135,314.01x = 9,213,174,038.16
  5. Step 5: Solve for x
    x = 9,213,174,038.16/135,314.01
  6. Step 6: Final answer
    x = 68,087.36

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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.