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Finding the Fourth Proportional to 110,419.98, 152,425.35 and 83,569.98

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Solution

The fourth proportional to 110,419.98, 152,425.35 and 83,569.98 is: 115,361.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,419.98 : 152,425.35 = 83,569.98 : x
  2. Step 2: Convert to fraction form
    110,419.98/152,425.35 = 83,569.98/x
  3. Step 3: Cross multiply
    110,419.98x = 152,425.35 × 83,569.98
  4. Step 4: Simplify right side
    110,419.98x = 12,738,183,450.99
  5. Step 5: Solve for x
    x = 12,738,183,450.99/110,419.98
  6. Step 6: Final answer
    x = 115,361.22

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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.