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Finding the Fourth Proportional to 200,931.95, 301,397.92 and 60,690.58

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Solution

The fourth proportional to 200,931.95, 301,397.92 and 60,690.58 is: 91,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,931.95 : 301,397.92 = 60,690.58 : x
  2. Step 2: Convert to fraction form
    200,931.95/301,397.92 = 60,690.58/x
  3. Step 3: Cross multiply
    200,931.95x = 301,397.92 × 60,690.58
  4. Step 4: Simplify right side
    200,931.95x = 18,292,014,575.59
  5. Step 5: Solve for x
    x = 18,292,014,575.59/200,931.95
  6. Step 6: Final answer
    x = 91,035.87

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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.