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Finding the Fourth Proportional to 259,578.90, 358,295.49 and 152,172.18

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Solution

The fourth proportional to 259,578.90, 358,295.49 and 152,172.18 is: 210,042.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,578.90 : 358,295.49 = 152,172.18 : x
  2. Step 2: Convert to fraction form
    259,578.90/358,295.49 = 152,172.18/x
  3. Step 3: Cross multiply
    259,578.90x = 358,295.49 × 152,172.18
  4. Step 4: Simplify right side
    259,578.90x = 54,522,605,797.47
  5. Step 5: Solve for x
    x = 54,522,605,797.47/259,578.90
  6. Step 6: Final answer
    x = 210,042.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.