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Finding the Fourth Proportional to 333,720.21, 500,576.04 and 81,002.64

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Solution

The fourth proportional to 333,720.21, 500,576.04 and 81,002.64 is: 121,502.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,720.21 : 500,576.04 = 81,002.64 : x
  2. Step 2: Convert to fraction form
    333,720.21/500,576.04 = 81,002.64/x
  3. Step 3: Cross multiply
    333,720.21x = 500,576.04 × 81,002.64
  4. Step 4: Simplify right side
    333,720.21x = 40,547,980,760.75
  5. Step 5: Solve for x
    x = 40,547,980,760.75/333,720.21
  6. Step 6: Final answer
    x = 121,502.92

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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.