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Finding the Fourth Proportional to 228,095.72, 342,201.90 and 94,931.72

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Solution

The fourth proportional to 228,095.72, 342,201.90 and 94,931.72 is: 142,421.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,095.72 : 342,201.90 = 94,931.72 : x
  2. Step 2: Convert to fraction form
    228,095.72/342,201.90 = 94,931.72/x
  3. Step 3: Cross multiply
    228,095.72x = 342,201.90 × 94,931.72
  4. Step 4: Simplify right side
    228,095.72x = 32,485,814,954.27
  5. Step 5: Solve for x
    x = 32,485,814,954.27/228,095.72
  6. Step 6: Final answer
    x = 142,421.85

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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.