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Finding the Fourth Proportional to 136,287.61, 204,417.03 and 36,457.88

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Solution

The fourth proportional to 136,287.61, 204,417.03 and 36,457.88 is: 54,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,287.61 : 204,417.03 = 36,457.88 : x
  2. Step 2: Convert to fraction form
    136,287.61/204,417.03 = 36,457.88/x
  3. Step 3: Cross multiply
    136,287.61x = 204,417.03 × 36,457.88
  4. Step 4: Simplify right side
    136,287.61x = 7,452,611,549.70
  5. Step 5: Solve for x
    x = 7,452,611,549.70/136,287.61
  6. Step 6: Final answer
    x = 54,682.97

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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.