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Finding the Fourth Proportional to 113,658.57, 170,537.01 and 61,006.53

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Solution

The fourth proportional to 113,658.57, 170,537.01 and 61,006.53 is: 91,536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,658.57 : 170,537.01 = 61,006.53 : x
  2. Step 2: Convert to fraction form
    113,658.57/170,537.01 = 61,006.53/x
  3. Step 3: Cross multiply
    113,658.57x = 170,537.01 × 61,006.53
  4. Step 4: Simplify right side
    113,658.57x = 10,403,871,216.68
  5. Step 5: Solve for x
    x = 10,403,871,216.68/113,658.57
  6. Step 6: Final answer
    x = 91,536.18

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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.