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Finding the Fourth Proportional to 239,077.96, 358,530.76 and 79,124.34

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Solution

The fourth proportional to 239,077.96, 358,530.76 and 79,124.34 is: 118,657.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,077.96 : 358,530.76 = 79,124.34 : x
  2. Step 2: Convert to fraction form
    239,077.96/358,530.76 = 79,124.34/x
  3. Step 3: Cross multiply
    239,077.96x = 358,530.76 × 79,124.34
  4. Step 4: Simplify right side
    239,077.96x = 28,368,509,853.60
  5. Step 5: Solve for x
    x = 28,368,509,853.60/239,077.96
  6. Step 6: Final answer
    x = 118,657.99

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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.