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Finding the Fourth Proportional to 247,196.96, 370,830.96 and 76,431.98

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Solution

The fourth proportional to 247,196.96, 370,830.96 and 76,431.98 is: 114,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,196.96 : 370,830.96 = 76,431.98 : x
  2. Step 2: Convert to fraction form
    247,196.96/370,830.96 = 76,431.98/x
  3. Step 3: Cross multiply
    247,196.96x = 370,830.96 × 76,431.98
  4. Step 4: Simplify right side
    247,196.96x = 28,343,344,518.10
  5. Step 5: Solve for x
    x = 28,343,344,518.10/247,196.96
  6. Step 6: Final answer
    x = 114,658.95

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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.