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Finding the Fourth Proportional to 128,043.46, 192,041.97 and 34,527.34

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Solution

The fourth proportional to 128,043.46, 192,041.97 and 34,527.34 is: 51,784.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,043.46 : 192,041.97 = 34,527.34 : x
  2. Step 2: Convert to fraction form
    128,043.46/192,041.97 = 34,527.34/x
  3. Step 3: Cross multiply
    128,043.46x = 192,041.97 × 34,527.34
  4. Step 4: Simplify right side
    128,043.46x = 6,630,698,392.46
  5. Step 5: Solve for x
    x = 6,630,698,392.46/128,043.46
  6. Step 6: Final answer
    x = 51,784.75

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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.