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Finding the Fourth Proportional to 340,337.88, 510,582.96 and 103,699.08

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Solution

The fourth proportional to 340,337.88, 510,582.96 and 103,699.08 is: 155,571.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,337.88 : 510,582.96 = 103,699.08 : x
  2. Step 2: Convert to fraction form
    340,337.88/510,582.96 = 103,699.08/x
  3. Step 3: Cross multiply
    340,337.88x = 510,582.96 × 103,699.08
  4. Step 4: Simplify right side
    340,337.88x = 52,946,983,215.68
  5. Step 5: Solve for x
    x = 52,946,983,215.68/340,337.88
  6. Step 6: Final answer
    x = 155,571.82

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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.