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Finding the Fourth Proportional to 122,674.30, 183,881.85 and 69,970.30

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Solution

The fourth proportional to 122,674.30, 183,881.85 and 69,970.30 is: 104,881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,674.30 : 183,881.85 = 69,970.30 : x
  2. Step 2: Convert to fraction form
    122,674.30/183,881.85 = 69,970.30/x
  3. Step 3: Cross multiply
    122,674.30x = 183,881.85 × 69,970.30
  4. Step 4: Simplify right side
    122,674.30x = 12,866,268,209.06
  5. Step 5: Solve for x
    x = 12,866,268,209.06/122,674.30
  6. Step 6: Final answer
    x = 104,881.53

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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.