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Finding the Fourth Proportional to 115,900.80, 173,851.20 and 56,774.40

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Solution

The fourth proportional to 115,900.80, 173,851.20 and 56,774.40 is: 85,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,900.80 : 173,851.20 = 56,774.40 : x
  2. Step 2: Convert to fraction form
    115,900.80/173,851.20 = 56,774.40/x
  3. Step 3: Cross multiply
    115,900.80x = 173,851.20 × 56,774.40
  4. Step 4: Simplify right side
    115,900.80x = 9,870,297,569.28
  5. Step 5: Solve for x
    x = 9,870,297,569.28/115,900.80
  6. Step 6: Final answer
    x = 85,161.60

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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.