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Finding the Fourth Proportional to 135,315.01, 202,950.45 and 45,397.51

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Solution

The fourth proportional to 135,315.01, 202,950.45 and 45,397.51 is: 68,088.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,315.01 : 202,950.45 = 45,397.51 : x
  2. Step 2: Convert to fraction form
    135,315.01/202,950.45 = 45,397.51/x
  3. Step 3: Cross multiply
    135,315.01x = 202,950.45 × 45,397.51
  4. Step 4: Simplify right side
    135,315.01x = 9,213,445,083.38
  5. Step 5: Solve for x
    x = 9,213,445,083.38/135,315.01
  6. Step 6: Final answer
    x = 68,088.86

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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.