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Finding the Fourth Proportional to 352,779.48, 486,844.71 and 191,643.75

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Solution

The fourth proportional to 352,779.48, 486,844.71 and 191,643.75 is: 264,473.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,779.48 : 486,844.71 = 191,643.75 : x
  2. Step 2: Convert to fraction form
    352,779.48/486,844.71 = 191,643.75/x
  3. Step 3: Cross multiply
    352,779.48x = 486,844.71 × 191,643.75
  4. Step 4: Simplify right side
    352,779.48x = 93,300,745,892.06
  5. Step 5: Solve for x
    x = 93,300,745,892.06/352,779.48
  6. Step 6: Final answer
    x = 264,473.28

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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.