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Finding the Fourth Proportional to 329,690.80, 494,617.20 and 93,030.40

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Solution

The fourth proportional to 329,690.80, 494,617.20 and 93,030.40 is: 139,568.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,690.80 : 494,617.20 = 93,030.40 : x
  2. Step 2: Convert to fraction form
    329,690.80/494,617.20 = 93,030.40/x
  3. Step 3: Cross multiply
    329,690.80x = 494,617.20 × 93,030.40
  4. Step 4: Simplify right side
    329,690.80x = 46,014,435,962.88
  5. Step 5: Solve for x
    x = 46,014,435,962.88/329,690.80
  6. Step 6: Final answer
    x = 139,568.46

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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.