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Finding the Fourth Proportional to 355,051.25, 532,587.81 and 155,268.80

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Solution

The fourth proportional to 355,051.25, 532,587.81 and 155,268.80 is: 232,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,051.25 : 532,587.81 = 155,268.80 : x
  2. Step 2: Convert to fraction form
    355,051.25/532,587.81 = 155,268.80/x
  3. Step 3: Cross multiply
    355,051.25x = 532,587.81 × 155,268.80
  4. Step 4: Simplify right side
    355,051.25x = 82,694,270,153.33
  5. Step 5: Solve for x
    x = 82,694,270,153.33/355,051.25
  6. Step 6: Final answer
    x = 232,907.98

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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.