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Finding the Fourth Proportional to 317,663.50, 438,375.63 and 183,527.50

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Solution

The fourth proportional to 317,663.50, 438,375.63 and 183,527.50 is: 253,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,663.50 : 438,375.63 = 183,527.50 : x
  2. Step 2: Convert to fraction form
    317,663.50/438,375.63 = 183,527.50/x
  3. Step 3: Cross multiply
    317,663.50x = 438,375.63 × 183,527.50
  4. Step 4: Simplify right side
    317,663.50x = 80,453,983,434.83
  5. Step 5: Solve for x
    x = 80,453,983,434.83/317,663.50
  6. Step 6: Final answer
    x = 253,267.95

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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.