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Finding the Fourth Proportional to 260,575.80, 390,863.70 and 184,468.20

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Solution

The fourth proportional to 260,575.80, 390,863.70 and 184,468.20 is: 276,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,575.80 : 390,863.70 = 184,468.20 : x
  2. Step 2: Convert to fraction form
    260,575.80/390,863.70 = 184,468.20/x
  3. Step 3: Cross multiply
    260,575.80x = 390,863.70 × 184,468.20
  4. Step 4: Simplify right side
    260,575.80x = 72,101,923,184.34
  5. Step 5: Solve for x
    x = 72,101,923,184.34/260,575.80
  6. Step 6: Final answer
    x = 276,702.30

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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.