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Finding the Fourth Proportional to 208,405.44, 312,571.44 and 58,610.16

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Solution

The fourth proportional to 208,405.44, 312,571.44 and 58,610.16 is: 87,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,405.44 : 312,571.44 = 58,610.16 : x
  2. Step 2: Convert to fraction form
    208,405.44/312,571.44 = 58,610.16/x
  3. Step 3: Cross multiply
    208,405.44x = 312,571.44 × 58,610.16
  4. Step 4: Simplify right side
    208,405.44x = 18,319,862,109.83
  5. Step 5: Solve for x
    x = 18,319,862,109.83/208,405.44
  6. Step 6: Final answer
    x = 87,904.91

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1.5x scale

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.