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Finding the Fourth Proportional to 189,042.80, 283,602.60 and 64,396.40

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Solution

The fourth proportional to 189,042.80, 283,602.60 and 64,396.40 is: 96,607.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,042.80 : 283,602.60 = 64,396.40 : x
  2. Step 2: Convert to fraction form
    189,042.80/283,602.60 = 64,396.40/x
  3. Step 3: Cross multiply
    189,042.80x = 283,602.60 × 64,396.40
  4. Step 4: Simplify right side
    189,042.80x = 18,262,986,470.64
  5. Step 5: Solve for x
    x = 18,262,986,470.64/189,042.80
  6. Step 6: Final answer
    x = 96,607.68

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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.