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Finding the Fourth Proportional to 369,947.90, 554,709.89 and 113,713.74

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Solution

The fourth proportional to 369,947.90, 554,709.89 and 113,713.74 is: 170,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,947.90 : 554,709.89 = 113,713.74 : x
  2. Step 2: Convert to fraction form
    369,947.90/554,709.89 = 113,713.74/x
  3. Step 3: Cross multiply
    369,947.90x = 554,709.89 × 113,713.74
  4. Step 4: Simplify right side
    369,947.90x = 63,078,133,511.35
  5. Step 5: Solve for x
    x = 63,078,133,511.35/369,947.90
  6. Step 6: Final answer
    x = 170,505.45

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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.