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Finding the Fourth Proportional to 341,485.76, 512,253.40 and 131,123.70

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Solution

The fourth proportional to 341,485.76, 512,253.40 and 131,123.70 is: 196,695.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,485.76 : 512,253.40 = 131,123.70 : x
  2. Step 2: Convert to fraction form
    341,485.76/512,253.40 = 131,123.70/x
  3. Step 3: Cross multiply
    341,485.76x = 512,253.40 × 131,123.70
  4. Step 4: Simplify right side
    341,485.76x = 67,168,561,145.58
  5. Step 5: Solve for x
    x = 67,168,561,145.58/341,485.76
  6. Step 6: Final answer
    x = 196,695.06

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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.