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Finding the Fourth Proportional to 115,192.71, 172,763.15 and 41,320.71

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Solution

The fourth proportional to 115,192.71, 172,763.15 and 41,320.71 is: 61,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,192.71 : 172,763.15 = 41,320.71 : x
  2. Step 2: Convert to fraction form
    115,192.71/172,763.15 = 41,320.71/x
  3. Step 3: Cross multiply
    115,192.71x = 172,763.15 × 41,320.71
  4. Step 4: Simplify right side
    115,192.71x = 7,138,695,813.23
  5. Step 5: Solve for x
    x = 7,138,695,813.23/115,192.71
  6. Step 6: Final answer
    x = 61,971.77

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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.