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Finding the Fourth Proportional to 358,880.58, 538,292.60 and 156,471.90

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Solution

The fourth proportional to 358,880.58, 538,292.60 and 156,471.90 is: 234,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,880.58 : 538,292.60 = 156,471.90 : x
  2. Step 2: Convert to fraction form
    358,880.58/538,292.60 = 156,471.90/x
  3. Step 3: Cross multiply
    358,880.58x = 538,292.60 × 156,471.90
  4. Step 4: Simplify right side
    358,880.58x = 84,227,665,095.58
  5. Step 5: Solve for x
    x = 84,227,665,095.58/358,880.58
  6. Step 6: Final answer
    x = 234,695.52

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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.