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Finding the Fourth Proportional to 317,730.61, 438,471.27 and 174,493.63

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Solution

The fourth proportional to 317,730.61, 438,471.27 and 174,493.63 is: 240,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,730.61 : 438,471.27 = 174,493.63 : x
  2. Step 2: Convert to fraction form
    317,730.61/438,471.27 = 174,493.63/x
  3. Step 3: Cross multiply
    317,730.61x = 438,471.27 × 174,493.63
  4. Step 4: Simplify right side
    317,730.61x = 76,510,440,488.19
  5. Step 5: Solve for x
    x = 76,510,440,488.19/317,730.61
  6. Step 6: Final answer
    x = 240,802.87

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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.