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Finding the Fourth Proportional to 317,499.40, 476,154.06 and 127,898.92

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Solution

The fourth proportional to 317,499.40, 476,154.06 and 127,898.92 is: 191,810.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,499.40 : 476,154.06 = 127,898.92 : x
  2. Step 2: Convert to fraction form
    317,499.40/476,154.06 = 127,898.92/x
  3. Step 3: Cross multiply
    317,499.40x = 476,154.06 × 127,898.92
  4. Step 4: Simplify right side
    317,499.40x = 60,899,590,027.62
  5. Step 5: Solve for x
    x = 60,899,590,027.62/317,499.40
  6. Step 6: Final answer
    x = 191,810.09

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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.