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Finding the Fourth Proportional to 235,634.40, 353,062.80 and 117,050.40

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Solution

The fourth proportional to 235,634.40, 353,062.80 and 117,050.40 is: 175,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,634.40 : 353,062.80 = 117,050.40 : x
  2. Step 2: Convert to fraction form
    235,634.40/353,062.80 = 117,050.40/x
  3. Step 3: Cross multiply
    235,634.40x = 353,062.80 × 117,050.40
  4. Step 4: Simplify right side
    235,634.40x = 41,326,141,965.12
  5. Step 5: Solve for x
    x = 41,326,141,965.12/235,634.40
  6. Step 6: Final answer
    x = 175,382.47

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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.