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Finding the Fourth Proportional to 94,761.90, 142,118.10 and 28,184.10

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Solution

The fourth proportional to 94,761.90, 142,118.10 and 28,184.10 is: 42,268.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,761.90 : 142,118.10 = 28,184.10 : x
  2. Step 2: Convert to fraction form
    94,761.90/142,118.10 = 28,184.10/x
  3. Step 3: Cross multiply
    94,761.90x = 142,118.10 × 28,184.10
  4. Step 4: Simplify right side
    94,761.90x = 4,005,470,742.21
  5. Step 5: Solve for x
    x = 4,005,470,742.21/94,761.90
  6. Step 6: Final answer
    x = 42,268.79

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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.