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Finding the Fourth Proportional to 114,038.88, 171,067.44 and 39,128.88

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Solution

The fourth proportional to 114,038.88, 171,067.44 and 39,128.88 is: 58,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,038.88 : 171,067.44 = 39,128.88 : x
  2. Step 2: Convert to fraction form
    114,038.88/171,067.44 = 39,128.88/x
  3. Step 3: Cross multiply
    114,038.88x = 171,067.44 × 39,128.88
  4. Step 4: Simplify right side
    114,038.88x = 6,693,677,331.67
  5. Step 5: Solve for x
    x = 6,693,677,331.67/114,038.88
  6. Step 6: Final answer
    x = 58,696.45

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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.