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Finding the Fourth Proportional to 235,644.40, 353,077.80 and 117,060.40

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Solution

The fourth proportional to 235,644.40, 353,077.80 and 117,060.40 is: 175,397.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,644.40 : 353,077.80 = 117,060.40 : x
  2. Step 2: Convert to fraction form
    235,644.40/353,077.80 = 117,060.40/x
  3. Step 3: Cross multiply
    235,644.40x = 353,077.80 × 117,060.40
  4. Step 4: Simplify right side
    235,644.40x = 41,331,428,499.12
  5. Step 5: Solve for x
    x = 41,331,428,499.12/235,644.40
  6. Step 6: Final answer
    x = 175,397.46

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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.