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Finding the Fourth Proportional to 355,054.32, 532,640.88 and 118,469.52

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Solution

The fourth proportional to 355,054.32, 532,640.88 and 118,469.52 is: 177,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,054.32 : 532,640.88 = 118,469.52 : x
  2. Step 2: Convert to fraction form
    355,054.32/532,640.88 = 118,469.52/x
  3. Step 3: Cross multiply
    355,054.32x = 532,640.88 × 118,469.52
  4. Step 4: Simplify right side
    355,054.32x = 63,101,709,385.98
  5. Step 5: Solve for x
    x = 63,101,709,385.98/355,054.32
  6. Step 6: Final answer
    x = 177,724.10

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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.