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Finding the Fourth Proportional to 103,237.20, 154,751.20 and 69,960.60

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Solution

The fourth proportional to 103,237.20, 154,751.20 and 69,960.60 is: 104,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,237.20 : 154,751.20 = 69,960.60 : x
  2. Step 2: Convert to fraction form
    103,237.20/154,751.20 = 69,960.60/x
  3. Step 3: Cross multiply
    103,237.20x = 154,751.20 × 69,960.60
  4. Step 4: Simplify right side
    103,237.20x = 10,826,486,802.72
  5. Step 5: Solve for x
    x = 10,826,486,802.72/103,237.20
  6. Step 6: Final answer
    x = 104,870.02

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1.5x scale

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.