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Finding the Fourth Proportional to 340,617.13, 510,915.97 and 103,925.41

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Solution

The fourth proportional to 340,617.13, 510,915.97 and 103,925.41 is: 155,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,617.13 : 510,915.97 = 103,925.41 : x
  2. Step 2: Convert to fraction form
    340,617.13/510,915.97 = 103,925.41/x
  3. Step 3: Cross multiply
    340,617.13x = 510,915.97 × 103,925.41
  4. Step 4: Simplify right side
    340,617.13x = 53,097,151,657.80
  5. Step 5: Solve for x
    x = 53,097,151,657.80/340,617.13
  6. Step 6: Final answer
    x = 155,885.15

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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.