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Finding the Fourth Proportional to 181,368.72, 250,297.16 and 100,804.10

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Solution

The fourth proportional to 181,368.72, 250,297.16 and 100,804.10 is: 139,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,368.72 : 250,297.16 = 100,804.10 : x
  2. Step 2: Convert to fraction form
    181,368.72/250,297.16 = 100,804.10/x
  3. Step 3: Cross multiply
    181,368.72x = 250,297.16 × 100,804.10
  4. Step 4: Simplify right side
    181,368.72x = 25,230,978,190.85
  5. Step 5: Solve for x
    x = 25,230,978,190.85/181,368.72
  6. Step 6: Final answer
    x = 139,114.28

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1.5x scale

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.