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Finding the Fourth Proportional to 80,874.78, 111,609.54 and 46,883.40

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Solution

The fourth proportional to 80,874.78, 111,609.54 and 46,883.40 is: 64,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,874.78 : 111,609.54 = 46,883.40 : x
  2. Step 2: Convert to fraction form
    80,874.78/111,609.54 = 46,883.40/x
  3. Step 3: Cross multiply
    80,874.78x = 111,609.54 × 46,883.40
  4. Step 4: Simplify right side
    80,874.78x = 5,232,634,707.64
  5. Step 5: Solve for x
    x = 5,232,634,707.64/80,874.78
  6. Step 6: Final answer
    x = 64,700.45

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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.