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Finding the Fourth Proportional to 255,442.56, 352,510.53 and 148,074.78

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Solution

The fourth proportional to 255,442.56, 352,510.53 and 148,074.78 is: 204,343.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,442.56 : 352,510.53 = 148,074.78 : x
  2. Step 2: Convert to fraction form
    255,442.56/352,510.53 = 148,074.78/x
  3. Step 3: Cross multiply
    255,442.56x = 352,510.53 × 148,074.78
  4. Step 4: Simplify right side
    255,442.56x = 52,197,919,177.43
  5. Step 5: Solve for x
    x = 52,197,919,177.43/255,442.56
  6. Step 6: Final answer
    x = 204,343.08

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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.