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Finding the Fourth Proportional to 159,403.34, 220,082.47 and 99,064.01

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Solution

The fourth proportional to 159,403.34, 220,082.47 and 99,064.01 is: 136,774.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,403.34 : 220,082.47 = 99,064.01 : x
  2. Step 2: Convert to fraction form
    159,403.34/220,082.47 = 99,064.01/x
  3. Step 3: Cross multiply
    159,403.34x = 220,082.47 × 99,064.01
  4. Step 4: Simplify right side
    159,403.34x = 21,802,252,311.45
  5. Step 5: Solve for x
    x = 21,802,252,311.45/159,403.34
  6. Step 6: Final answer
    x = 136,774.12

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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.