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Finding the Fourth Proportional to 231,703.20, 347,587.20 and 98,582.40

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Solution

The fourth proportional to 231,703.20, 347,587.20 and 98,582.40 is: 147,887.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,703.20 : 347,587.20 = 98,582.40 : x
  2. Step 2: Convert to fraction form
    231,703.20/347,587.20 = 98,582.40/x
  3. Step 3: Cross multiply
    231,703.20x = 347,587.20 × 98,582.40
  4. Step 4: Simplify right side
    231,703.20x = 34,265,980,385.28
  5. Step 5: Solve for x
    x = 34,265,980,385.28/231,703.20
  6. Step 6: Final answer
    x = 147,887.39

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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.