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Finding the Fourth Proportional to 101,066.70, 151,308.45 and 98,150.70

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Solution

The fourth proportional to 101,066.70, 151,308.45 and 98,150.70 is: 146,942.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,066.70 : 151,308.45 = 98,150.70 : x
  2. Step 2: Convert to fraction form
    101,066.70/151,308.45 = 98,150.70/x
  3. Step 3: Cross multiply
    101,066.70x = 151,308.45 × 98,150.70
  4. Step 4: Simplify right side
    101,066.70x = 14,851,030,283.42
  5. Step 5: Solve for x
    x = 14,851,030,283.42/101,066.70
  6. Step 6: Final answer
    x = 146,942.86

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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.