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Finding the Fourth Proportional to 317,872.44, 438,671.88 and 174,641.76

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Solution

The fourth proportional to 317,872.44, 438,671.88 and 174,641.76 is: 241,009.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,872.44 : 438,671.88 = 174,641.76 : x
  2. Step 2: Convert to fraction form
    317,872.44/438,671.88 = 174,641.76/x
  3. Step 3: Cross multiply
    317,872.44x = 438,671.88 × 174,641.76
  4. Step 4: Simplify right side
    317,872.44x = 76,610,429,185.71
  5. Step 5: Solve for x
    x = 76,610,429,185.71/317,872.44
  6. Step 6: Final answer
    x = 241,009.98

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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.