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Finding the Fourth Proportional to 194,394.90, 291,548.60 and 69,735.90

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Solution

The fourth proportional to 194,394.90, 291,548.60 and 69,735.90 is: 104,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,394.90 : 291,548.60 = 69,735.90 : x
  2. Step 2: Convert to fraction form
    194,394.90/291,548.60 = 69,735.90/x
  3. Step 3: Cross multiply
    194,394.90x = 291,548.60 × 69,735.90
  4. Step 4: Simplify right side
    194,394.90x = 20,331,403,666.06
  5. Step 5: Solve for x
    x = 20,331,403,666.06/194,394.90
  6. Step 6: Final answer
    x = 104,588.15

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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.