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Finding the Fourth Proportional to 147,430.60, 221,145.90 and 36,622.60

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Solution

The fourth proportional to 147,430.60, 221,145.90 and 36,622.60 is: 54,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,430.60 : 221,145.90 = 36,622.60 : x
  2. Step 2: Convert to fraction form
    147,430.60/221,145.90 = 36,622.60/x
  3. Step 3: Cross multiply
    147,430.60x = 221,145.90 × 36,622.60
  4. Step 4: Simplify right side
    147,430.60x = 8,098,937,837.34
  5. Step 5: Solve for x
    x = 8,098,937,837.34/147,430.60
  6. Step 6: Final answer
    x = 54,933.90

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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.