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Finding the Fourth Proportional to 122,762.11, 169,410.04 and 69,047.11

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Solution

The fourth proportional to 122,762.11, 169,410.04 and 69,047.11 is: 95,284.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,762.11 : 169,410.04 = 69,047.11 : x
  2. Step 2: Convert to fraction form
    122,762.11/169,410.04 = 69,047.11/x
  3. Step 3: Cross multiply
    122,762.11x = 169,410.04 × 69,047.11
  4. Step 4: Simplify right side
    122,762.11x = 11,697,273,666.98
  5. Step 5: Solve for x
    x = 11,697,273,666.98/122,762.11
  6. Step 6: Final answer
    x = 95,284.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.