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Finding the Fourth Proportional to 335,390.73, 503,021.89 and 130,225.38

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Solution

The fourth proportional to 335,390.73, 503,021.89 and 130,225.38 is: 195,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,390.73 : 503,021.89 = 130,225.38 : x
  2. Step 2: Convert to fraction form
    335,390.73/503,021.89 = 130,225.38/x
  3. Step 3: Cross multiply
    335,390.73x = 503,021.89 × 130,225.38
  4. Step 4: Simplify right side
    335,390.73x = 65,506,216,773.57
  5. Step 5: Solve for x
    x = 65,506,216,773.57/335,390.73
  6. Step 6: Final answer
    x = 195,313.14

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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.