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Finding the Fourth Proportional to 375,353.08, 562,951.86 and 138,533.92

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Solution

The fourth proportional to 375,353.08, 562,951.86 and 138,533.92 is: 207,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,353.08 : 562,951.86 = 138,533.92 : x
  2. Step 2: Convert to fraction form
    375,353.08/562,951.86 = 138,533.92/x
  3. Step 3: Cross multiply
    375,353.08x = 562,951.86 × 138,533.92
  4. Step 4: Simplify right side
    375,353.08x = 77,987,927,937.09
  5. Step 5: Solve for x
    x = 77,987,927,937.09/375,353.08
  6. Step 6: Final answer
    x = 207,772.18

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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.