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Finding the Fourth Proportional to 268,396.72, 370,392.07 and 147,543.10

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Solution

The fourth proportional to 268,396.72, 370,392.07 and 147,543.10 is: 203,612.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,396.72 : 370,392.07 = 147,543.10 : x
  2. Step 2: Convert to fraction form
    268,396.72/370,392.07 = 147,543.10/x
  3. Step 3: Cross multiply
    268,396.72x = 370,392.07 × 147,543.10
  4. Step 4: Simplify right side
    268,396.72x = 54,648,792,371.26
  5. Step 5: Solve for x
    x = 54,648,792,371.26/268,396.72
  6. Step 6: Final answer
    x = 203,612.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.