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Finding the Fourth Proportional to 220,798.05, 304,395.18 and 149,064.45

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Solution

The fourth proportional to 220,798.05, 304,395.18 and 149,064.45 is: 205,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,798.05 : 304,395.18 = 149,064.45 : x
  2. Step 2: Convert to fraction form
    220,798.05/304,395.18 = 149,064.45/x
  3. Step 3: Cross multiply
    220,798.05x = 304,395.18 × 149,064.45
  4. Step 4: Simplify right side
    220,798.05x = 45,374,500,089.35
  5. Step 5: Solve for x
    x = 45,374,500,089.35/220,798.05
  6. Step 6: Final answer
    x = 205,502.27

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1.5x scale

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.