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Finding the Fourth Proportional to 220,019.84, 303,632.88 and 119,417.60

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Solution

The fourth proportional to 220,019.84, 303,632.88 and 119,417.60 is: 164,799.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,019.84 : 303,632.88 = 119,417.60 : x
  2. Step 2: Convert to fraction form
    220,019.84/303,632.88 = 119,417.60/x
  3. Step 3: Cross multiply
    220,019.84x = 303,632.88 × 119,417.60
  4. Step 4: Simplify right side
    220,019.84x = 36,259,109,810.69
  5. Step 5: Solve for x
    x = 36,259,109,810.69/220,019.84
  6. Step 6: Final answer
    x = 164,799.27

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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.