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Finding the Fourth Proportional to 144,595.82, 199,513.88 and 90,849.70

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Solution

The fourth proportional to 144,595.82, 199,513.88 and 90,849.70 is: 125,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,595.82 : 199,513.88 = 90,849.70 : x
  2. Step 2: Convert to fraction form
    144,595.82/199,513.88 = 90,849.70/x
  3. Step 3: Cross multiply
    144,595.82x = 199,513.88 × 90,849.70
  4. Step 4: Simplify right side
    144,595.82x = 18,125,776,143.84
  5. Step 5: Solve for x
    x = 18,125,776,143.84/144,595.82
  6. Step 6: Final answer
    x = 125,354.77

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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.