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Finding the Fourth Proportional to 171,472.79, 257,154.65 and 160,278.23

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Solution

The fourth proportional to 171,472.79, 257,154.65 and 160,278.23 is: 240,366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,472.79 : 257,154.65 = 160,278.23 : x
  2. Step 2: Convert to fraction form
    171,472.79/257,154.65 = 160,278.23/x
  3. Step 3: Cross multiply
    171,472.79x = 257,154.65 × 160,278.23
  4. Step 4: Simplify right side
    171,472.79x = 41,216,290,051.11
  5. Step 5: Solve for x
    x = 41,216,290,051.11/171,472.79
  6. Step 6: Final answer
    x = 240,366.37

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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.