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Finding the Fourth Proportional to 110,695.52, 152,390.34 and 105,611.42

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Solution

The fourth proportional to 110,695.52, 152,390.34 and 105,611.42 is: 145,391.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,695.52 : 152,390.34 = 105,611.42 : x
  2. Step 2: Convert to fraction form
    110,695.52/152,390.34 = 105,611.42/x
  3. Step 3: Cross multiply
    110,695.52x = 152,390.34 × 105,611.42
  4. Step 4: Simplify right side
    110,695.52x = 16,094,160,201.68
  5. Step 5: Solve for x
    x = 16,094,160,201.68/110,695.52
  6. Step 6: Final answer
    x = 145,391.25

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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.