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Finding the Fourth Proportional to 352,782.48, 486,848.85 and 191,646.75

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Solution

The fourth proportional to 352,782.48, 486,848.85 and 191,646.75 is: 264,477.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,782.48 : 486,848.85 = 191,646.75 : x
  2. Step 2: Convert to fraction form
    352,782.48/486,848.85 = 191,646.75/x
  3. Step 3: Cross multiply
    352,782.48x = 486,848.85 × 191,646.75
  4. Step 4: Simplify right side
    352,782.48x = 93,302,999,843.74
  5. Step 5: Solve for x
    x = 93,302,999,843.74/352,782.48
  6. Step 6: Final answer
    x = 264,477.42

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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.