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Finding the Fourth Proportional to 317,637.96, 476,355.76 and 104,356.36

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Solution

The fourth proportional to 317,637.96, 476,355.76 and 104,356.36 is: 156,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,637.96 : 476,355.76 = 104,356.36 : x
  2. Step 2: Convert to fraction form
    317,637.96/476,355.76 = 104,356.36/x
  3. Step 3: Cross multiply
    317,637.96x = 476,355.76 × 104,356.36
  4. Step 4: Simplify right side
    317,637.96x = 49,710,753,178.63
  5. Step 5: Solve for x
    x = 49,710,753,178.63/317,637.96
  6. Step 6: Final answer
    x = 156,501.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.