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Finding the Fourth Proportional to 239,722.95, 359,331.66 and 79,756.16

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Solution

The fourth proportional to 239,722.95, 359,331.66 and 79,756.16 is: 119,550.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,722.95 : 359,331.66 = 79,756.16 : x
  2. Step 2: Convert to fraction form
    239,722.95/359,331.66 = 79,756.16/x
  3. Step 3: Cross multiply
    239,722.95x = 359,331.66 × 79,756.16
  4. Step 4: Simplify right side
    239,722.95x = 28,658,911,571.37
  5. Step 5: Solve for x
    x = 28,658,911,571.37/239,722.95
  6. Step 6: Final answer
    x = 119,550.14

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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.