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Finding the Fourth Proportional to 235,570.20, 353,225.70 and 102,427.80

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Solution

The fourth proportional to 235,570.20, 353,225.70 and 102,427.80 is: 153,585.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,570.20 : 353,225.70 = 102,427.80 : x
  2. Step 2: Convert to fraction form
    235,570.20/353,225.70 = 102,427.80/x
  3. Step 3: Cross multiply
    235,570.20x = 353,225.70 × 102,427.80
  4. Step 4: Simplify right side
    235,570.20x = 36,180,131,354.46
  5. Step 5: Solve for x
    x = 36,180,131,354.46/235,570.20
  6. Step 6: Final answer
    x = 153,585.35

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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.