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Finding the Fourth Proportional to 228,574.72, 342,884.63 and 78,795.29

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Solution

The fourth proportional to 228,574.72, 342,884.63 and 78,795.29 is: 118,200.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,574.72 : 342,884.63 = 78,795.29 : x
  2. Step 2: Convert to fraction form
    228,574.72/342,884.63 = 78,795.29/x
  3. Step 3: Cross multiply
    228,574.72x = 342,884.63 × 78,795.29
  4. Step 4: Simplify right side
    228,574.72x = 27,017,692,339.96
  5. Step 5: Solve for x
    x = 27,017,692,339.96/228,574.72
  6. Step 6: Final answer
    x = 118,200.70

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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.