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Finding the Fourth Proportional to 335,720.13, 503,672.54 and 99,062.81

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Solution

The fourth proportional to 335,720.13, 503,672.54 and 99,062.81 is: 148,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,720.13 : 503,672.54 = 99,062.81 : x
  2. Step 2: Convert to fraction form
    335,720.13/503,672.54 = 99,062.81/x
  3. Step 3: Cross multiply
    335,720.13x = 503,672.54 × 99,062.81
  4. Step 4: Simplify right side
    335,720.13x = 49,895,216,750.30
  5. Step 5: Solve for x
    x = 49,895,216,750.30/335,720.13
  6. Step 6: Final answer
    x = 148,621.46

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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.