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Finding the Fourth Proportional to 153,786.60, 230,636.70 and 48,637.80

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Solution

The fourth proportional to 153,786.60, 230,636.70 and 48,637.80 is: 72,943.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,786.60 : 230,636.70 = 48,637.80 : x
  2. Step 2: Convert to fraction form
    153,786.60/230,636.70 = 48,637.80/x
  3. Step 3: Cross multiply
    153,786.60x = 230,636.70 × 48,637.80
  4. Step 4: Simplify right side
    153,786.60x = 11,217,661,687.26
  5. Step 5: Solve for x
    x = 11,217,661,687.26/153,786.60
  6. Step 6: Final answer
    x = 72,943.04

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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.