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Finding the Fourth Proportional to 112,433.40, 168,698.70 and 57,029.40

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Solution

The fourth proportional to 112,433.40, 168,698.70 and 57,029.40 is: 85,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,433.40 : 168,698.70 = 57,029.40 : x
  2. Step 2: Convert to fraction form
    112,433.40/168,698.70 = 57,029.40/x
  3. Step 3: Cross multiply
    112,433.40x = 168,698.70 × 57,029.40
  4. Step 4: Simplify right side
    112,433.40x = 9,620,785,641.78
  5. Step 5: Solve for x
    x = 9,620,785,641.78/112,433.40
  6. Step 6: Final answer
    x = 85,568.75

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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.