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Finding the Fourth Proportional to 235,536.40, 353,304.60 and 102,480.40

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Solution

The fourth proportional to 235,536.40, 353,304.60 and 102,480.40 is: 153,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,536.40 : 353,304.60 = 102,480.40 : x
  2. Step 2: Convert to fraction form
    235,536.40/353,304.60 = 102,480.40/x
  3. Step 3: Cross multiply
    235,536.40x = 353,304.60 × 102,480.40
  4. Step 4: Simplify right side
    235,536.40x = 36,206,796,729.84
  5. Step 5: Solve for x
    x = 36,206,796,729.84/235,536.40
  6. Step 6: Final answer
    x = 153,720.60

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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.