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Finding the Fourth Proportional to 172,870.50, 259,407.81 and 73,024.23

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Solution

The fourth proportional to 172,870.50, 259,407.81 and 73,024.23 is: 109,579.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,870.50 : 259,407.81 = 73,024.23 : x
  2. Step 2: Convert to fraction form
    172,870.50/259,407.81 = 73,024.23/x
  3. Step 3: Cross multiply
    172,870.50x = 259,407.81 × 73,024.23
  4. Step 4: Simplify right side
    172,870.50x = 18,943,055,581.24
  5. Step 5: Solve for x
    x = 18,943,055,581.24/172,870.50
  6. Step 6: Final answer
    x = 109,579.46

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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.