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Finding the Fourth Proportional to 340,336.76, 510,509.24 and 103,681.49

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Solution

The fourth proportional to 340,336.76, 510,509.24 and 103,681.49 is: 155,523.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,336.76 : 510,509.24 = 103,681.49 : x
  2. Step 2: Convert to fraction form
    340,336.76/510,509.24 = 103,681.49/x
  3. Step 3: Cross multiply
    340,336.76x = 510,509.24 × 103,681.49
  4. Step 4: Simplify right side
    340,336.76x = 52,930,355,591.01
  5. Step 5: Solve for x
    x = 52,930,355,591.01/340,336.76
  6. Step 6: Final answer
    x = 155,523.48

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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.