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Finding the Fourth Proportional to 239,152.62, 358,779.53 and 79,219.50

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Solution

The fourth proportional to 239,152.62, 358,779.53 and 79,219.50 is: 118,846.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,152.62 : 358,779.53 = 79,219.50 : x
  2. Step 2: Convert to fraction form
    239,152.62/358,779.53 = 79,219.50/x
  3. Step 3: Cross multiply
    239,152.62x = 358,779.53 × 79,219.50
  4. Step 4: Simplify right side
    239,152.62x = 28,422,334,976.84
  5. Step 5: Solve for x
    x = 28,422,334,976.84/239,152.62
  6. Step 6: Final answer
    x = 118,846.01

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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.