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Finding the Fourth Proportional to 358,992.32, 538,552.52 and 119,120.63

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Solution

The fourth proportional to 358,992.32, 538,552.52 and 119,120.63 is: 178,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,992.32 : 538,552.52 = 119,120.63 : x
  2. Step 2: Convert to fraction form
    358,992.32/538,552.52 = 119,120.63/x
  3. Step 3: Cross multiply
    358,992.32x = 538,552.52 × 119,120.63
  4. Step 4: Simplify right side
    358,992.32x = 64,152,712,182.12
  5. Step 5: Solve for x
    x = 64,152,712,182.12/358,992.32
  6. Step 6: Final answer
    x = 178,702.19

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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.