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Finding the Fourth Proportional to 116,467.20, 174,700.80 and 107,913.60

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Solution

The fourth proportional to 116,467.20, 174,700.80 and 107,913.60 is: 161,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,467.20 : 174,700.80 = 107,913.60 : x
  2. Step 2: Convert to fraction form
    116,467.20/174,700.80 = 107,913.60/x
  3. Step 3: Cross multiply
    116,467.20x = 174,700.80 × 107,913.60
  4. Step 4: Simplify right side
    116,467.20x = 18,852,592,250.88
  5. Step 5: Solve for x
    x = 18,852,592,250.88/116,467.20
  6. Step 6: Final answer
    x = 161,870.40

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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.