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Finding the Fourth Proportional to 353,089.96, 487,267.31 and 191,945.32

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Solution

The fourth proportional to 353,089.96, 487,267.31 and 191,945.32 is: 264,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,089.96 : 487,267.31 = 191,945.32 : x
  2. Step 2: Convert to fraction form
    353,089.96/487,267.31 = 191,945.32/x
  3. Step 3: Cross multiply
    353,089.96x = 487,267.31 × 191,945.32
  4. Step 4: Simplify right side
    353,089.96x = 93,528,679,005.18
  5. Step 5: Solve for x
    x = 93,528,679,005.18/353,089.96
  6. Step 6: Final answer
    x = 264,886.26

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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.