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Finding the Fourth Proportional to 265,392.80, 366,272.32 and 157,963.20

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Solution

The fourth proportional to 265,392.80, 366,272.32 and 157,963.20 is: 218,007.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,392.80 : 366,272.32 = 157,963.20 : x
  2. Step 2: Convert to fraction form
    265,392.80/366,272.32 = 157,963.20/x
  3. Step 3: Cross multiply
    265,392.80x = 366,272.32 × 157,963.20
  4. Step 4: Simplify right side
    265,392.80x = 57,857,547,738.62
  5. Step 5: Solve for x
    x = 57,857,547,738.62/265,392.80
  6. Step 6: Final answer
    x = 218,007.22

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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.