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Finding the Fourth Proportional to 350,702.11, 526,009.42 and 140,341.87

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Solution

The fourth proportional to 350,702.11, 526,009.42 and 140,341.87 is: 210,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,702.11 : 526,009.42 = 140,341.87 : x
  2. Step 2: Convert to fraction form
    350,702.11/526,009.42 = 140,341.87/x
  3. Step 3: Cross multiply
    350,702.11x = 526,009.42 × 140,341.87
  4. Step 4: Simplify right side
    350,702.11x = 73,821,145,640.42
  5. Step 5: Solve for x
    x = 73,821,145,640.42/350,702.11
  6. Step 6: Final answer
    x = 210,495.30

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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.