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Finding the Fourth Proportional to 267,405.60, 368,959.86 and 152,647.68

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Solution

The fourth proportional to 267,405.60, 368,959.86 and 152,647.68 is: 210,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,405.60 : 368,959.86 = 152,647.68 : x
  2. Step 2: Convert to fraction form
    267,405.60/368,959.86 = 152,647.68/x
  3. Step 3: Cross multiply
    267,405.60x = 368,959.86 × 152,647.68
  4. Step 4: Simplify right side
    267,405.60x = 56,320,866,642.12
  5. Step 5: Solve for x
    x = 56,320,866,642.12/267,405.60
  6. Step 6: Final answer
    x = 210,619.62

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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.