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Finding the Fourth Proportional to 144,554.94, 216,810.54 and 39,382.20

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Solution

The fourth proportional to 144,554.94, 216,810.54 and 39,382.20 is: 59,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,554.94 : 216,810.54 = 39,382.20 : x
  2. Step 2: Convert to fraction form
    144,554.94/216,810.54 = 39,382.20/x
  3. Step 3: Cross multiply
    144,554.94x = 216,810.54 × 39,382.20
  4. Step 4: Simplify right side
    144,554.94x = 8,538,476,048.39
  5. Step 5: Solve for x
    x = 8,538,476,048.39/144,554.94
  6. Step 6: Final answer
    x = 59,067.34

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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.