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Finding the Fourth Proportional to 483,680.48, 725,522.40 and 168,140

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Solution

The fourth proportional to 483,680.48, 725,522.40 and 168,140 is: 252,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,680.48 : 725,522.40 = 168,140 : x
  2. Step 2: Convert to fraction form
    483,680.48/725,522.40 = 168,140/x
  3. Step 3: Cross multiply
    483,680.48x = 725,522.40 × 168,140
  4. Step 4: Simplify right side
    483,680.48x = 121,989,336,336
  5. Step 5: Solve for x
    x = 121,989,336,336/483,680.48
  6. Step 6: Final answer
    x = 252,210.58

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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.