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Finding the Fourth Proportional to 174,907.40, 262,490.70 and 69,801.80

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Solution

The fourth proportional to 174,907.40, 262,490.70 and 69,801.80 is: 104,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,907.40 : 262,490.70 = 69,801.80 : x
  2. Step 2: Convert to fraction form
    174,907.40/262,490.70 = 69,801.80/x
  3. Step 3: Cross multiply
    174,907.40x = 262,490.70 × 69,801.80
  4. Step 4: Simplify right side
    174,907.40x = 18,322,323,343.26
  5. Step 5: Solve for x
    x = 18,322,323,343.26/174,907.40
  6. Step 6: Final answer
    x = 104,754.42

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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.