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Finding the Fourth Proportional to 155,603.60, 233,405.40 and 118,278.80

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Solution

The fourth proportional to 155,603.60, 233,405.40 and 118,278.80 is: 177,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,603.60 : 233,405.40 = 118,278.80 : x
  2. Step 2: Convert to fraction form
    155,603.60/233,405.40 = 118,278.80/x
  3. Step 3: Cross multiply
    155,603.60x = 233,405.40 × 118,278.80
  4. Step 4: Simplify right side
    155,603.60x = 27,606,910,625.52
  5. Step 5: Solve for x
    x = 27,606,910,625.52/155,603.60
  6. Step 6: Final answer
    x = 177,418.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.