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Finding the Fourth Proportional to 113,637, 170,480.11 and 43,516.32

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Solution

The fourth proportional to 113,637, 170,480.11 and 43,516.32 is: 65,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,637 : 170,480.11 = 43,516.32 : x
  2. Step 2: Convert to fraction form
    113,637/170,480.11 = 43,516.32/x
  3. Step 3: Cross multiply
    113,637x = 170,480.11 × 43,516.32
  4. Step 4: Simplify right side
    113,637x = 7,418,665,950.41
  5. Step 5: Solve for x
    x = 7,418,665,950.41/113,637
  6. Step 6: Final answer
    x = 65,283.89

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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.