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Finding the Fourth Proportional to 128,032.52, 191,791.56 and 63,796.92

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Solution

The fourth proportional to 128,032.52, 191,791.56 and 63,796.92 is: 95,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,032.52 : 191,791.56 = 63,796.92 : x
  2. Step 2: Convert to fraction form
    128,032.52/191,791.56 = 63,796.92/x
  3. Step 3: Cross multiply
    128,032.52x = 191,791.56 × 63,796.92
  4. Step 4: Simplify right side
    128,032.52x = 12,235,710,810.00
  5. Step 5: Solve for x
    x = 12,235,710,810.00/128,032.52
  6. Step 6: Final answer
    x = 95,567.21

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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.