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Finding the Fourth Proportional to 318,472.74, 439,483.32 and 175,232.88

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Solution

The fourth proportional to 318,472.74, 439,483.32 and 175,232.88 is: 241,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,472.74 : 439,483.32 = 175,232.88 : x
  2. Step 2: Convert to fraction form
    318,472.74/439,483.32 = 175,232.88/x
  3. Step 3: Cross multiply
    318,472.74x = 439,483.32 × 175,232.88
  4. Step 4: Simplify right side
    318,472.74x = 77,011,927,875.56
  5. Step 5: Solve for x
    x = 77,011,927,875.56/318,472.74
  6. Step 6: Final answer
    x = 241,816.39

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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.