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Finding the Fourth Proportional to 317,929, 476,967.35 and 93,280.36

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Solution

The fourth proportional to 317,929, 476,967.35 and 93,280.36 is: 139,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,929 : 476,967.35 = 93,280.36 : x
  2. Step 2: Convert to fraction form
    317,929/476,967.35 = 93,280.36/x
  3. Step 3: Cross multiply
    317,929x = 476,967.35 × 93,280.36
  4. Step 4: Simplify right side
    317,929x = 44,491,686,116.25
  5. Step 5: Solve for x
    x = 44,491,686,116.25/317,929
  6. Step 6: Final answer
    x = 139,942.21

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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.