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Finding the Fourth Proportional to 215,362.17, 323,044.47 and 191,779.02

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Solution

The fourth proportional to 215,362.17, 323,044.47 and 191,779.02 is: 287,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,362.17 : 323,044.47 = 191,779.02 : x
  2. Step 2: Convert to fraction form
    215,362.17/323,044.47 = 191,779.02/x
  3. Step 3: Cross multiply
    215,362.17x = 323,044.47 × 191,779.02
  4. Step 4: Simplify right side
    215,362.17x = 61,953,151,873.02
  5. Step 5: Solve for x
    x = 61,953,151,873.02/215,362.17
  6. Step 6: Final answer
    x = 287,669.61

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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.