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Finding the Fourth Proportional to 110,228.40, 165,342.60 and 79,124.40

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Solution

The fourth proportional to 110,228.40, 165,342.60 and 79,124.40 is: 118,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,228.40 : 165,342.60 = 79,124.40 : x
  2. Step 2: Convert to fraction form
    110,228.40/165,342.60 = 79,124.40/x
  3. Step 3: Cross multiply
    110,228.40x = 165,342.60 × 79,124.40
  4. Step 4: Simplify right side
    110,228.40x = 13,082,634,019.44
  5. Step 5: Solve for x
    x = 13,082,634,019.44/110,228.40
  6. Step 6: Final answer
    x = 118,686.60

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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.