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Finding the Fourth Proportional to 372,709.96, 559,069.80 and 106,479.16

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Solution

The fourth proportional to 372,709.96, 559,069.80 and 106,479.16 is: 159,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,709.96 : 559,069.80 = 106,479.16 : x
  2. Step 2: Convert to fraction form
    372,709.96/559,069.80 = 106,479.16/x
  3. Step 3: Cross multiply
    372,709.96x = 559,069.80 × 106,479.16
  4. Step 4: Simplify right side
    372,709.96x = 59,529,282,685.37
  5. Step 5: Solve for x
    x = 59,529,282,685.37/372,709.96
  6. Step 6: Final answer
    x = 159,720.13

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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.