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Finding the Fourth Proportional to 350,883.60, 526,354.56 and 140,406.72

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Solution

The fourth proportional to 350,883.60, 526,354.56 and 140,406.72 is: 210,621.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,883.60 : 526,354.56 = 140,406.72 : x
  2. Step 2: Convert to fraction form
    350,883.60/526,354.56 = 140,406.72/x
  3. Step 3: Cross multiply
    350,883.60x = 526,354.56 × 140,406.72
  4. Step 4: Simplify right side
    350,883.60x = 73,903,717,326.64
  5. Step 5: Solve for x
    x = 73,903,717,326.64/350,883.60
  6. Step 6: Final answer
    x = 210,621.75

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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.