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Finding the Fourth Proportional to 208,203.78, 313,602.54 and 193,604.34

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Solution

The fourth proportional to 208,203.78, 313,602.54 and 193,604.34 is: 291,612.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,203.78 : 313,602.54 = 193,604.34 : x
  2. Step 2: Convert to fraction form
    208,203.78/313,602.54 = 193,604.34/x
  3. Step 3: Cross multiply
    208,203.78x = 313,602.54 × 193,604.34
  4. Step 4: Simplify right side
    208,203.78x = 60,714,812,779.02
  5. Step 5: Solve for x
    x = 60,714,812,779.02/208,203.78
  6. Step 6: Final answer
    x = 291,612.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.