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Finding the Fourth Proportional to 141,745.66, 212,749.71 and 71,674.18

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Solution

The fourth proportional to 141,745.66, 212,749.71 and 71,674.18 is: 107,577.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,745.66 : 212,749.71 = 71,674.18 : x
  2. Step 2: Convert to fraction form
    141,745.66/212,749.71 = 71,674.18/x
  3. Step 3: Cross multiply
    141,745.66x = 212,749.71 × 71,674.18
  4. Step 4: Simplify right side
    141,745.66x = 15,248,661,009.49
  5. Step 5: Solve for x
    x = 15,248,661,009.49/141,745.66
  6. Step 6: Final answer
    x = 107,577.62

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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.