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Finding the Fourth Proportional to 228,012.22, 314,650.74 and 124,642.32

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Solution

The fourth proportional to 228,012.22, 314,650.74 and 124,642.32 is: 172,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,012.22 : 314,650.74 = 124,642.32 : x
  2. Step 2: Convert to fraction form
    228,012.22/314,650.74 = 124,642.32/x
  3. Step 3: Cross multiply
    228,012.22x = 314,650.74 × 124,642.32
  4. Step 4: Simplify right side
    228,012.22x = 39,218,798,223.32
  5. Step 5: Solve for x
    x = 39,218,798,223.32/228,012.22
  6. Step 6: Final answer
    x = 172,003.05

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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.