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Finding the Fourth Proportional to 157,302.41, 217,075.55 and 85,682.41

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Solution

The fourth proportional to 157,302.41, 217,075.55 and 85,682.41 is: 118,240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,302.41 : 217,075.55 = 85,682.41 : x
  2. Step 2: Convert to fraction form
    157,302.41/217,075.55 = 85,682.41/x
  3. Step 3: Cross multiply
    157,302.41x = 217,075.55 × 85,682.41
  4. Step 4: Simplify right side
    157,302.41x = 18,599,555,304.97
  5. Step 5: Solve for x
    x = 18,599,555,304.97/157,302.41
  6. Step 6: Final answer
    x = 118,240.76

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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.