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Finding the Fourth Proportional to 247,305.10, 370,848.30 and 114,116.80

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Solution

The fourth proportional to 247,305.10, 370,848.30 and 114,116.80 is: 171,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,305.10 : 370,848.30 = 114,116.80 : x
  2. Step 2: Convert to fraction form
    247,305.10/370,848.30 = 114,116.80/x
  3. Step 3: Cross multiply
    247,305.10x = 370,848.30 × 114,116.80
  4. Step 4: Simplify right side
    247,305.10x = 42,320,021,281.44
  5. Step 5: Solve for x
    x = 42,320,021,281.44/247,305.10
  6. Step 6: Final answer
    x = 171,124.74

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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.