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Finding the Fourth Proportional to 194,468.60, 291,702.90 and 165,438.20

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Solution

The fourth proportional to 194,468.60, 291,702.90 and 165,438.20 is: 248,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,468.60 : 291,702.90 = 165,438.20 : x
  2. Step 2: Convert to fraction form
    194,468.60/291,702.90 = 165,438.20/x
  3. Step 3: Cross multiply
    194,468.60x = 291,702.90 × 165,438.20
  4. Step 4: Simplify right side
    194,468.60x = 48,258,802,710.78
  5. Step 5: Solve for x
    x = 48,258,802,710.78/194,468.60
  6. Step 6: Final answer
    x = 248,157.30

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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.