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Finding the Fourth Proportional to 111,920.10, 167,880.15 and 97,340.10

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Solution

The fourth proportional to 111,920.10, 167,880.15 and 97,340.10 is: 146,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,920.10 : 167,880.15 = 97,340.10 : x
  2. Step 2: Convert to fraction form
    111,920.10/167,880.15 = 97,340.10/x
  3. Step 3: Cross multiply
    111,920.10x = 167,880.15 × 97,340.10
  4. Step 4: Simplify right side
    111,920.10x = 16,341,470,589.02
  5. Step 5: Solve for x
    x = 16,341,470,589.02/111,920.10
  6. Step 6: Final answer
    x = 146,010.15

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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.