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Finding the Fourth Proportional to 235,526.40, 352,771.20 and 141,868.80

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Solution

The fourth proportional to 235,526.40, 352,771.20 and 141,868.80 is: 212,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,526.40 : 352,771.20 = 141,868.80 : x
  2. Step 2: Convert to fraction form
    235,526.40/352,771.20 = 141,868.80/x
  3. Step 3: Cross multiply
    235,526.40x = 352,771.20 × 141,868.80
  4. Step 4: Simplify right side
    235,526.40x = 50,047,226,818.56
  5. Step 5: Solve for x
    x = 50,047,226,818.56/235,526.40
  6. Step 6: Final answer
    x = 212,490.94

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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.