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Finding the Fourth Proportional to 188,384.68, 282,552.72 and 156,990.70

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Solution

The fourth proportional to 188,384.68, 282,552.72 and 156,990.70 is: 235,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,384.68 : 282,552.72 = 156,990.70 : x
  2. Step 2: Convert to fraction form
    188,384.68/282,552.72 = 156,990.70/x
  3. Step 3: Cross multiply
    188,384.68x = 282,552.72 × 156,990.70
  4. Step 4: Simplify right side
    188,384.68x = 44,358,149,299.70
  5. Step 5: Solve for x
    x = 44,358,149,299.70/188,384.68
  6. Step 6: Final answer
    x = 235,465.80

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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.