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Finding the Fourth Proportional to 372,188.64, 558,283.23 and 91,705.89

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Solution

The fourth proportional to 372,188.64, 558,283.23 and 91,705.89 is: 137,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,188.64 : 558,283.23 = 91,705.89 : x
  2. Step 2: Convert to fraction form
    372,188.64/558,283.23 = 91,705.89/x
  3. Step 3: Cross multiply
    372,188.64x = 558,283.23 × 91,705.89
  4. Step 4: Simplify right side
    372,188.64x = 51,197,860,479.22
  5. Step 5: Solve for x
    x = 51,197,860,479.22/372,188.64
  6. Step 6: Final answer
    x = 137,558.90

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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.