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Finding the Fourth Proportional to 630,022.76, 945,037.56 and 156,708.12

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Solution

The fourth proportional to 630,022.76, 945,037.56 and 156,708.12 is: 235,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,022.76 : 945,037.56 = 156,708.12 : x
  2. Step 2: Convert to fraction form
    630,022.76/945,037.56 = 156,708.12/x
  3. Step 3: Cross multiply
    630,022.76x = 945,037.56 × 156,708.12
  4. Step 4: Simplify right side
    630,022.76x = 148,095,056,850.47
  5. Step 5: Solve for x
    x = 148,095,056,850.47/630,022.76
  6. Step 6: Final answer
    x = 235,063.03

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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.