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Finding the Fourth Proportional to 236,728.90, 354,920.55 and 96,415.30

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Solution

The fourth proportional to 236,728.90, 354,920.55 and 96,415.30 is: 144,552.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,728.90 : 354,920.55 = 96,415.30 : x
  2. Step 2: Convert to fraction form
    236,728.90/354,920.55 = 96,415.30/x
  3. Step 3: Cross multiply
    236,728.90x = 354,920.55 × 96,415.30
  4. Step 4: Simplify right side
    236,728.90x = 34,219,771,304.42
  5. Step 5: Solve for x
    x = 34,219,771,304.42/236,728.90
  6. Step 6: Final answer
    x = 144,552.57

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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.