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Finding the Fourth Proportional to 292,621.65, 439,116.99 and 115,105.59

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Solution

The fourth proportional to 292,621.65, 439,116.99 and 115,105.59 is: 172,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,621.65 : 439,116.99 = 115,105.59 : x
  2. Step 2: Convert to fraction form
    292,621.65/439,116.99 = 115,105.59/x
  3. Step 3: Cross multiply
    292,621.65x = 439,116.99 × 115,105.59
  4. Step 4: Simplify right side
    292,621.65x = 50,544,820,212.97
  5. Step 5: Solve for x
    x = 50,544,820,212.97/292,621.65
  6. Step 6: Final answer
    x = 172,730.97

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1.5x scale

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.