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Finding the Fourth Proportional to 111,558.57, 153,950.73 and 61,257.57

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Solution

The fourth proportional to 111,558.57, 153,950.73 and 61,257.57 is: 84,535.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,558.57 : 153,950.73 = 61,257.57 : x
  2. Step 2: Convert to fraction form
    111,558.57/153,950.73 = 61,257.57/x
  3. Step 3: Cross multiply
    111,558.57x = 153,950.73 × 61,257.57
  4. Step 4: Simplify right side
    111,558.57x = 9,430,646,812.49
  5. Step 5: Solve for x
    x = 9,430,646,812.49/111,558.57
  6. Step 6: Final answer
    x = 84,535.39

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1.5x scale

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.