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Finding the Fourth Proportional to 339,210.40, 508,889.40 and 102,546.90

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Solution

The fourth proportional to 339,210.40, 508,889.40 and 102,546.90 is: 153,842.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,210.40 : 508,889.40 = 102,546.90 : x
  2. Step 2: Convert to fraction form
    339,210.40/508,889.40 = 102,546.90/x
  3. Step 3: Cross multiply
    339,210.40x = 508,889.40 × 102,546.90
  4. Step 4: Simplify right side
    339,210.40x = 52,185,030,412.86
  5. Step 5: Solve for x
    x = 52,185,030,412.86/339,210.40
  6. Step 6: Final answer
    x = 153,842.66

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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.