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Finding the Fourth Proportional to 317,664.50, 438,377.01 and 183,528.50

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Solution

The fourth proportional to 317,664.50, 438,377.01 and 183,528.50 is: 253,269.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,664.50 : 438,377.01 = 183,528.50 : x
  2. Step 2: Convert to fraction form
    317,664.50/438,377.01 = 183,528.50/x
  3. Step 3: Cross multiply
    317,664.50x = 438,377.01 × 183,528.50
  4. Step 4: Simplify right side
    317,664.50x = 80,454,675,079.79
  5. Step 5: Solve for x
    x = 80,454,675,079.79/317,664.50
  6. Step 6: Final answer
    x = 253,269.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.