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Finding the Fourth Proportional to 215,065.10, 322,597.65 and 162,577.10

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Solution

The fourth proportional to 215,065.10, 322,597.65 and 162,577.10 is: 243,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,065.10 : 322,597.65 = 162,577.10 : x
  2. Step 2: Convert to fraction form
    215,065.10/322,597.65 = 162,577.10/x
  3. Step 3: Cross multiply
    215,065.10x = 322,597.65 × 162,577.10
  4. Step 4: Simplify right side
    215,065.10x = 52,446,990,403.82
  5. Step 5: Solve for x
    x = 52,446,990,403.82/215,065.10
  6. Step 6: Final answer
    x = 243,865.65

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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.