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Finding the Fourth Proportional to 143,572.24, 215,392.44 and 45,076.24

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Solution

The fourth proportional to 143,572.24, 215,392.44 and 45,076.24 is: 67,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,572.24 : 215,392.44 = 45,076.24 : x
  2. Step 2: Convert to fraction form
    143,572.24/215,392.44 = 45,076.24/x
  3. Step 3: Cross multiply
    143,572.24x = 215,392.44 × 45,076.24
  4. Step 4: Simplify right side
    143,572.24x = 9,709,081,319.63
  5. Step 5: Solve for x
    x = 9,709,081,319.63/143,572.24
  6. Step 6: Final answer
    x = 67,625.06

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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.