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Finding the Fourth Proportional to 210,637.84, 316,035.64 and 109,372.68

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Solution

The fourth proportional to 210,637.84, 316,035.64 and 109,372.68 is: 164,099.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,637.84 : 316,035.64 = 109,372.68 : x
  2. Step 2: Convert to fraction form
    210,637.84/316,035.64 = 109,372.68/x
  3. Step 3: Cross multiply
    210,637.84x = 316,035.64 × 109,372.68
  4. Step 4: Simplify right side
    210,637.84x = 34,565,664,922.32
  5. Step 5: Solve for x
    x = 34,565,664,922.32/210,637.84
  6. Step 6: Final answer
    x = 164,099.98

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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.