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Finding the Fourth Proportional to 211,246.00, 316,918.86 and 69,090.74

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Solution

The fourth proportional to 211,246.00, 316,918.86 and 69,090.74 is: 103,652.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,246.00 : 316,918.86 = 69,090.74 : x
  2. Step 2: Convert to fraction form
    211,246.00/316,918.86 = 69,090.74/x
  3. Step 3: Cross multiply
    211,246.00x = 316,918.86 × 69,090.74
  4. Step 4: Simplify right side
    211,246.00x = 21,896,157,902.12
  5. Step 5: Solve for x
    x = 21,896,157,902.12/211,246.00
  6. Step 6: Final answer
    x = 103,652.41

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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.