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Finding the Fourth Proportional to 207,643.28, 285,929.51 and 192,572.24

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Solution

The fourth proportional to 207,643.28, 285,929.51 and 192,572.24 is: 265,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,643.28 : 285,929.51 = 192,572.24 : x
  2. Step 2: Convert to fraction form
    207,643.28/285,929.51 = 192,572.24/x
  3. Step 3: Cross multiply
    207,643.28x = 285,929.51 × 192,572.24
  4. Step 4: Simplify right side
    207,643.28x = 55,062,083,830.29
  5. Step 5: Solve for x
    x = 55,062,083,830.29/207,643.28
  6. Step 6: Final answer
    x = 265,176.34

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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.