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Finding the Fourth Proportional to 98,292.98, 147,438.25 and 69,322.30

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Solution

The fourth proportional to 98,292.98, 147,438.25 and 69,322.30 is: 103,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,292.98 : 147,438.25 = 69,322.30 : x
  2. Step 2: Convert to fraction form
    98,292.98/147,438.25 = 69,322.30/x
  3. Step 3: Cross multiply
    98,292.98x = 147,438.25 × 69,322.30
  4. Step 4: Simplify right side
    98,292.98x = 10,220,758,597.98
  5. Step 5: Solve for x
    x = 10,220,758,597.98/98,292.98
  6. Step 6: Final answer
    x = 103,982.59

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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.