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Finding the Fourth Proportional to 144,295.35, 215,386.35 and 127,251.47

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Solution

The fourth proportional to 144,295.35, 215,386.35 and 127,251.47 is: 189,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,295.35 : 215,386.35 = 127,251.47 : x
  2. Step 2: Convert to fraction form
    144,295.35/215,386.35 = 127,251.47/x
  3. Step 3: Cross multiply
    144,295.35x = 215,386.35 × 127,251.47
  4. Step 4: Simplify right side
    144,295.35x = 27,408,228,578.50
  5. Step 5: Solve for x
    x = 27,408,228,578.50/144,295.35
  6. Step 6: Final answer
    x = 189,945.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.