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Finding the Fourth Proportional to 127,801.64, 176,365.47 and 69,658.31

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Solution

The fourth proportional to 127,801.64, 176,365.47 and 69,658.31 is: 96,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,801.64 : 176,365.47 = 69,658.31 : x
  2. Step 2: Convert to fraction form
    127,801.64/176,365.47 = 69,658.31/x
  3. Step 3: Cross multiply
    127,801.64x = 176,365.47 × 69,658.31
  4. Step 4: Simplify right side
    127,801.64x = 12,285,320,582.56
  5. Step 5: Solve for x
    x = 12,285,320,582.56/127,801.64
  6. Step 6: Final answer
    x = 96,128.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.