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Finding the Fourth Proportional to 354,554.40, 531,715.96 and 117,833.52

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Solution

The fourth proportional to 354,554.40, 531,715.96 and 117,833.52 is: 176,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,554.40 : 531,715.96 = 117,833.52 : x
  2. Step 2: Convert to fraction form
    354,554.40/531,715.96 = 117,833.52/x
  3. Step 3: Cross multiply
    354,554.40x = 531,715.96 × 117,833.52
  4. Step 4: Simplify right side
    354,554.40x = 62,653,963,206.98
  5. Step 5: Solve for x
    x = 62,653,963,206.98/354,554.40
  6. Step 6: Final answer
    x = 176,711.85

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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.