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Finding the Fourth Proportional to 164,549.12, 246,774.76 and 69,777.90

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Solution

The fourth proportional to 164,549.12, 246,774.76 and 69,777.90 is: 104,646.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,549.12 : 246,774.76 = 69,777.90 : x
  2. Step 2: Convert to fraction form
    164,549.12/246,774.76 = 69,777.90/x
  3. Step 3: Cross multiply
    164,549.12x = 246,774.76 × 69,777.90
  4. Step 4: Simplify right side
    164,549.12x = 17,219,424,351.36
  5. Step 5: Solve for x
    x = 17,219,424,351.36/164,549.12
  6. Step 6: Final answer
    x = 104,646.11

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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.