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Finding the Fourth Proportional to 352,287.60, 528,042.60 and 194,629.20

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Solution

The fourth proportional to 352,287.60, 528,042.60 and 194,629.20 is: 291,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,287.60 : 528,042.60 = 194,629.20 : x
  2. Step 2: Convert to fraction form
    352,287.60/528,042.60 = 194,629.20/x
  3. Step 3: Cross multiply
    352,287.60x = 528,042.60 × 194,629.20
  4. Step 4: Simplify right side
    352,287.60x = 102,772,508,803.92
  5. Step 5: Solve for x
    x = 102,772,508,803.92/352,287.60
  6. Step 6: Final answer
    x = 291,729.00

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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.