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Finding the Fourth Proportional to 317,462.61, 476,188.69 and 127,918.36

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Solution

The fourth proportional to 317,462.61, 476,188.69 and 127,918.36 is: 191,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,462.61 : 476,188.69 = 127,918.36 : x
  2. Step 2: Convert to fraction form
    317,462.61/476,188.69 = 127,918.36/x
  3. Step 3: Cross multiply
    317,462.61x = 476,188.69 × 127,918.36
  4. Step 4: Simplify right side
    317,462.61x = 60,913,276,275.35
  5. Step 5: Solve for x
    x = 60,913,276,275.35/317,462.61
  6. Step 6: Final answer
    x = 191,875.43

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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.