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Finding the Fourth Proportional to 144,886.61, 217,284.90 and 69,960.17

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Solution

The fourth proportional to 144,886.61, 217,284.90 and 69,960.17 is: 104,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,886.61 : 217,284.90 = 69,960.17 : x
  2. Step 2: Convert to fraction form
    144,886.61/217,284.90 = 69,960.17/x
  3. Step 3: Cross multiply
    144,886.61x = 217,284.90 × 69,960.17
  4. Step 4: Simplify right side
    144,886.61x = 15,201,287,456.01
  5. Step 5: Solve for x
    x = 15,201,287,456.01/144,886.61
  6. Step 6: Final answer
    x = 104,918.52

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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.