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Finding the Fourth Proportional to 172,894.44, 259,332.19 and 66,329.49

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Solution

The fourth proportional to 172,894.44, 259,332.19 and 66,329.49 is: 99,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,894.44 : 259,332.19 = 66,329.49 : x
  2. Step 2: Convert to fraction form
    172,894.44/259,332.19 = 66,329.49/x
  3. Step 3: Cross multiply
    172,894.44x = 259,332.19 × 66,329.49
  4. Step 4: Simplify right side
    172,894.44x = 17,201,371,903.28
  5. Step 5: Solve for x
    x = 17,201,371,903.28/172,894.44
  6. Step 6: Final answer
    x = 99,490.60

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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.