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Finding the Fourth Proportional to 128,042.46, 192,040.47 and 34,526.34

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Solution

The fourth proportional to 128,042.46, 192,040.47 and 34,526.34 is: 51,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,042.46 : 192,040.47 = 34,526.34 : x
  2. Step 2: Convert to fraction form
    128,042.46/192,040.47 = 34,526.34/x
  3. Step 3: Cross multiply
    128,042.46x = 192,040.47 × 34,526.34
  4. Step 4: Simplify right side
    128,042.46x = 6,630,454,560.98
  5. Step 5: Solve for x
    x = 6,630,454,560.98/128,042.46
  6. Step 6: Final answer
    x = 51,783.25

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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.