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Finding the Fourth Proportional to 353,224.71, 529,832.43 and 86,987.43

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Solution

The fourth proportional to 353,224.71, 529,832.43 and 86,987.43 is: 130,480.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,224.71 : 529,832.43 = 86,987.43 : x
  2. Step 2: Convert to fraction form
    353,224.71/529,832.43 = 86,987.43/x
  3. Step 3: Cross multiply
    353,224.71x = 529,832.43 × 86,987.43
  4. Step 4: Simplify right side
    353,224.71x = 46,088,761,416.35
  5. Step 5: Solve for x
    x = 46,088,761,416.35/353,224.71
  6. Step 6: Final answer
    x = 130,480.00

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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.