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Finding the Fourth Proportional to 247,334.55, 370,878.98 and 78,832.95

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Solution

The fourth proportional to 247,334.55, 370,878.98 and 78,832.95 is: 118,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,334.55 : 370,878.98 = 78,832.95 : x
  2. Step 2: Convert to fraction form
    247,334.55/370,878.98 = 78,832.95/x
  3. Step 3: Cross multiply
    247,334.55x = 370,878.98 × 78,832.95
  4. Step 4: Simplify right side
    247,334.55x = 29,237,483,692.23
  5. Step 5: Solve for x
    x = 29,237,483,692.23/247,334.55
  6. Step 6: Final answer
    x = 118,210.27

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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.