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Finding the Fourth Proportional to 172,468.08, 238,011.12 and 104,470.56

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Solution

The fourth proportional to 172,468.08, 238,011.12 and 104,470.56 is: 144,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,468.08 : 238,011.12 = 104,470.56 : x
  2. Step 2: Convert to fraction form
    172,468.08/238,011.12 = 104,470.56/x
  3. Step 3: Cross multiply
    172,468.08x = 238,011.12 × 104,470.56
  4. Step 4: Simplify right side
    172,468.08x = 24,865,154,992.63
  5. Step 5: Solve for x
    x = 24,865,154,992.63/172,468.08
  6. Step 6: Final answer
    x = 144,172.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.