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Finding the Fourth Proportional to 358,985.88, 538,578.59 and 156,599.69

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Solution

The fourth proportional to 358,985.88, 538,578.59 and 156,599.69 is: 234,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,985.88 : 538,578.59 = 156,599.69 : x
  2. Step 2: Convert to fraction form
    358,985.88/538,578.59 = 156,599.69/x
  3. Step 3: Cross multiply
    358,985.88x = 538,578.59 × 156,599.69
  4. Step 4: Simplify right side
    358,985.88x = 84,341,236,758.75
  5. Step 5: Solve for x
    x = 84,341,236,758.75/358,985.88
  6. Step 6: Final answer
    x = 234,943.05

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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.