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Finding the Fourth Proportional to 160,140.50, 220,993.95 and 88,520.50

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Solution

The fourth proportional to 160,140.50, 220,993.95 and 88,520.50 is: 122,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,140.50 : 220,993.95 = 88,520.50 : x
  2. Step 2: Convert to fraction form
    160,140.50/220,993.95 = 88,520.50/x
  3. Step 3: Cross multiply
    160,140.50x = 220,993.95 × 88,520.50
  4. Step 4: Simplify right side
    160,140.50x = 19,562,494,950.98
  5. Step 5: Solve for x
    x = 19,562,494,950.98/160,140.50
  6. Step 6: Final answer
    x = 122,158.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.