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Finding the Fourth Proportional to 219,562.16, 302,991.80 and 124,066.80

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Solution

The fourth proportional to 219,562.16, 302,991.80 and 124,066.80 is: 171,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,562.16 : 302,991.80 = 124,066.80 : x
  2. Step 2: Convert to fraction form
    219,562.16/302,991.80 = 124,066.80/x
  3. Step 3: Cross multiply
    219,562.16x = 302,991.80 × 124,066.80
  4. Step 4: Simplify right side
    219,562.16x = 37,591,223,052.24
  5. Step 5: Solve for x
    x = 37,591,223,052.24/219,562.16
  6. Step 6: Final answer
    x = 171,209.93

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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.