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Finding the Fourth Proportional to 172,716.84, 259,075.26 and 98,793

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Solution

The fourth proportional to 172,716.84, 259,075.26 and 98,793 is: 148,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,716.84 : 259,075.26 = 98,793 : x
  2. Step 2: Convert to fraction form
    172,716.84/259,075.26 = 98,793/x
  3. Step 3: Cross multiply
    172,716.84x = 259,075.26 × 98,793
  4. Step 4: Simplify right side
    172,716.84x = 25,594,822,161.18
  5. Step 5: Solve for x
    x = 25,594,822,161.18/172,716.84
  6. Step 6: Final answer
    x = 148,189.50

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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.