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Finding the Fourth Proportional to 368,326.42, 508,146.54 and 207,144.52

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Solution

The fourth proportional to 368,326.42, 508,146.54 and 207,144.52 is: 285,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,326.42 : 508,146.54 = 207,144.52 : x
  2. Step 2: Convert to fraction form
    368,326.42/508,146.54 = 207,144.52/x
  3. Step 3: Cross multiply
    368,326.42x = 508,146.54 × 207,144.52
  4. Step 4: Simplify right side
    368,326.42x = 105,259,771,117.96
  5. Step 5: Solve for x
    x = 105,259,771,117.96/368,326.42
  6. Step 6: Final answer
    x = 285,778.50

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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.