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Finding the Fourth Proportional to 611,595.89, 917,322.52 and 162,351.66

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Solution

The fourth proportional to 611,595.89, 917,322.52 and 162,351.66 is: 243,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,595.89 : 917,322.52 = 162,351.66 : x
  2. Step 2: Convert to fraction form
    611,595.89/917,322.52 = 162,351.66/x
  3. Step 3: Cross multiply
    611,595.89x = 917,322.52 × 162,351.66
  4. Step 4: Simplify right side
    611,595.89x = 148,928,833,877.38
  5. Step 5: Solve for x
    x = 148,928,833,877.38/611,595.89
  6. Step 6: Final answer
    x = 243,508.56

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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.