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Finding the Fourth Proportional to 111,607.20, 167,410.80 and 103,053.60

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Solution

The fourth proportional to 111,607.20, 167,410.80 and 103,053.60 is: 154,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,607.20 : 167,410.80 = 103,053.60 : x
  2. Step 2: Convert to fraction form
    111,607.20/167,410.80 = 103,053.60/x
  3. Step 3: Cross multiply
    111,607.20x = 167,410.80 × 103,053.60
  4. Step 4: Simplify right side
    111,607.20x = 17,252,285,618.88
  5. Step 5: Solve for x
    x = 17,252,285,618.88/111,607.20
  6. Step 6: Final answer
    x = 154,580.40

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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.