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Finding the Fourth Proportional to 470,152.74, 705,224.25 and 115,168.62

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Solution

The fourth proportional to 470,152.74, 705,224.25 and 115,168.62 is: 172,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,152.74 : 705,224.25 = 115,168.62 : x
  2. Step 2: Convert to fraction form
    470,152.74/705,224.25 = 115,168.62/x
  3. Step 3: Cross multiply
    470,152.74x = 705,224.25 × 115,168.62
  4. Step 4: Simplify right side
    470,152.74x = 81,219,703,663.04
  5. Step 5: Solve for x
    x = 81,219,703,663.04/470,152.74
  6. Step 6: Final answer
    x = 172,751.74

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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.