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Finding the Fourth Proportional to 317,990.36, 476,929.92 and 93,347.12

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Solution

The fourth proportional to 317,990.36, 476,929.92 and 93,347.12 is: 140,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,990.36 : 476,929.92 = 93,347.12 : x
  2. Step 2: Convert to fraction form
    317,990.36/476,929.92 = 93,347.12/x
  3. Step 3: Cross multiply
    317,990.36x = 476,929.92 × 93,347.12
  4. Step 4: Simplify right side
    317,990.36x = 44,520,034,473.83
  5. Step 5: Solve for x
    x = 44,520,034,473.83/317,990.36
  6. Step 6: Final answer
    x = 140,004.35

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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.