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Finding the Fourth Proportional to 372,143.53, 558,289.05 and 105,914.53

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Solution

The fourth proportional to 372,143.53, 558,289.05 and 105,914.53 is: 158,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,143.53 : 558,289.05 = 105,914.53 : x
  2. Step 2: Convert to fraction form
    372,143.53/558,289.05 = 105,914.53/x
  3. Step 3: Cross multiply
    372,143.53x = 558,289.05 × 105,914.53
  4. Step 4: Simplify right side
    372,143.53x = 59,130,922,334.90
  5. Step 5: Solve for x
    x = 59,130,922,334.90/372,143.53
  6. Step 6: Final answer
    x = 158,892.79

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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.