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Finding the Fourth Proportional to 325,549.40, 488,324.10 and 168,085.40

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Solution

The fourth proportional to 325,549.40, 488,324.10 and 168,085.40 is: 252,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,549.40 : 488,324.10 = 168,085.40 : x
  2. Step 2: Convert to fraction form
    325,549.40/488,324.10 = 168,085.40/x
  3. Step 3: Cross multiply
    325,549.40x = 488,324.10 × 168,085.40
  4. Step 4: Simplify right side
    325,549.40x = 82,080,151,678.14
  5. Step 5: Solve for x
    x = 82,080,151,678.14/325,549.40
  6. Step 6: Final answer
    x = 252,128.10

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1.5x scale

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.