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Finding the Fourth Proportional to 84,681.90, 127,002.60 and 49,066.20

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Solution

The fourth proportional to 84,681.90, 127,002.60 and 49,066.20 is: 73,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,681.90 : 127,002.60 = 49,066.20 : x
  2. Step 2: Convert to fraction form
    84,681.90/127,002.60 = 49,066.20/x
  3. Step 3: Cross multiply
    84,681.90x = 127,002.60 × 49,066.20
  4. Step 4: Simplify right side
    84,681.90x = 6,231,534,972.12
  5. Step 5: Solve for x
    x = 6,231,534,972.12/84,681.90
  6. Step 6: Final answer
    x = 73,587.57

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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.