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Finding the Fourth Proportional to 240,495.78, 331,739.58 and 158,824.78

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Solution

The fourth proportional to 240,495.78, 331,739.58 and 158,824.78 is: 219,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,495.78 : 331,739.58 = 158,824.78 : x
  2. Step 2: Convert to fraction form
    240,495.78/331,739.58 = 158,824.78/x
  3. Step 3: Cross multiply
    240,495.78x = 331,739.58 × 158,824.78
  4. Step 4: Simplify right side
    240,495.78x = 52,688,465,810.79
  5. Step 5: Solve for x
    x = 52,688,465,810.79/240,495.78
  6. Step 6: Final answer
    x = 219,082.70

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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.