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Finding the Fourth Proportional to 353,005.90, 487,151.88 and 191,860.96

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Solution

The fourth proportional to 353,005.90, 487,151.88 and 191,860.96 is: 264,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,005.90 : 487,151.88 = 191,860.96 : x
  2. Step 2: Convert to fraction form
    353,005.90/487,151.88 = 191,860.96/x
  3. Step 3: Cross multiply
    353,005.90x = 487,151.88 × 191,860.96
  4. Step 4: Simplify right side
    353,005.90x = 93,465,427,362.60
  5. Step 5: Solve for x
    x = 93,465,427,362.60/353,005.90
  6. Step 6: Final answer
    x = 264,770.16

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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.