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Finding the Fourth Proportional to 172,722.78, 259,159.23 and 60,483.51

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Solution

The fourth proportional to 172,722.78, 259,159.23 and 60,483.51 is: 90,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,722.78 : 259,159.23 = 60,483.51 : x
  2. Step 2: Convert to fraction form
    172,722.78/259,159.23 = 60,483.51/x
  3. Step 3: Cross multiply
    172,722.78x = 259,159.23 × 60,483.51
  4. Step 4: Simplify right side
    172,722.78x = 15,674,859,879.30
  5. Step 5: Solve for x
    x = 15,674,859,879.30/172,722.78
  6. Step 6: Final answer
    x = 90,751.55

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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.