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Finding the Fourth Proportional to 84,211.56, 116,211.24 and 46,485

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Solution

The fourth proportional to 84,211.56, 116,211.24 and 46,485 is: 64,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,211.56 : 116,211.24 = 46,485 : x
  2. Step 2: Convert to fraction form
    84,211.56/116,211.24 = 46,485/x
  3. Step 3: Cross multiply
    84,211.56x = 116,211.24 × 46,485
  4. Step 4: Simplify right side
    84,211.56x = 5,402,079,491.40
  5. Step 5: Solve for x
    x = 5,402,079,491.40/84,211.56
  6. Step 6: Final answer
    x = 64,148.91

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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.