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Finding the Fourth Proportional to 152,111.92, 228,070.68 and 73,068.88

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Solution

The fourth proportional to 152,111.92, 228,070.68 and 73,068.88 is: 109,556.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,111.92 : 228,070.68 = 73,068.88 : x
  2. Step 2: Convert to fraction form
    152,111.92/228,070.68 = 73,068.88/x
  3. Step 3: Cross multiply
    152,111.92x = 228,070.68 × 73,068.88
  4. Step 4: Simplify right side
    152,111.92x = 16,664,869,148.44
  5. Step 5: Solve for x
    x = 16,664,869,148.44/152,111.92
  6. Step 6: Final answer
    x = 109,556.63

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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.