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Finding the Fourth Proportional to 245,139.82, 367,710.70 and 162,015.34

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Solution

The fourth proportional to 245,139.82, 367,710.70 and 162,015.34 is: 243,023.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,139.82 : 367,710.70 = 162,015.34 : x
  2. Step 2: Convert to fraction form
    245,139.82/367,710.70 = 162,015.34/x
  3. Step 3: Cross multiply
    245,139.82x = 367,710.70 × 162,015.34
  4. Step 4: Simplify right side
    245,139.82x = 59,574,774,082.14
  5. Step 5: Solve for x
    x = 59,574,774,082.14/245,139.82
  6. Step 6: Final answer
    x = 243,023.65

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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.