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Finding the Fourth Proportional to 133,030.90, 199,611.15 and 101,430.10

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Solution

The fourth proportional to 133,030.90, 199,611.15 and 101,430.10 is: 152,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,030.90 : 199,611.15 = 101,430.10 : x
  2. Step 2: Convert to fraction form
    133,030.90/199,611.15 = 101,430.10/x
  3. Step 3: Cross multiply
    133,030.90x = 199,611.15 × 101,430.10
  4. Step 4: Simplify right side
    133,030.90x = 20,246,578,905.62
  5. Step 5: Solve for x
    x = 20,246,578,905.62/133,030.90
  6. Step 6: Final answer
    x = 152,194.56

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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.