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Finding the Fourth Proportional to 121,503.60, 182,255.40 and 116,254.80

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Solution

The fourth proportional to 121,503.60, 182,255.40 and 116,254.80 is: 174,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,503.60 : 182,255.40 = 116,254.80 : x
  2. Step 2: Convert to fraction form
    121,503.60/182,255.40 = 116,254.80/x
  3. Step 3: Cross multiply
    121,503.60x = 182,255.40 × 116,254.80
  4. Step 4: Simplify right side
    121,503.60x = 21,188,065,075.92
  5. Step 5: Solve for x
    x = 21,188,065,075.92/121,503.60
  6. Step 6: Final answer
    x = 174,382.20

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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.