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Finding the Fourth Proportional to 109,740.90, 164,611.35 and 101,100.90

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Solution

The fourth proportional to 109,740.90, 164,611.35 and 101,100.90 is: 151,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,740.90 : 164,611.35 = 101,100.90 : x
  2. Step 2: Convert to fraction form
    109,740.90/164,611.35 = 101,100.90/x
  3. Step 3: Cross multiply
    109,740.90x = 164,611.35 × 101,100.90
  4. Step 4: Simplify right side
    109,740.90x = 16,642,355,635.22
  5. Step 5: Solve for x
    x = 16,642,355,635.22/109,740.90
  6. Step 6: Final answer
    x = 151,651.35

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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.