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Finding the Fourth Proportional to 368,124.75, 551,891.07 and 208,101.96

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Solution

The fourth proportional to 368,124.75, 551,891.07 and 208,101.96 is: 311,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,124.75 : 551,891.07 = 208,101.96 : x
  2. Step 2: Convert to fraction form
    368,124.75/551,891.07 = 208,101.96/x
  3. Step 3: Cross multiply
    368,124.75x = 551,891.07 × 208,101.96
  4. Step 4: Simplify right side
    368,124.75x = 114,849,613,373.50
  5. Step 5: Solve for x
    x = 114,849,613,373.50/368,124.75
  6. Step 6: Final answer
    x = 311,985.58

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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.