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Finding the Fourth Proportional to 220,667.68, 330,868.08 and 99,066.16

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Solution

The fourth proportional to 220,667.68, 330,868.08 and 99,066.16 is: 148,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,667.68 : 330,868.08 = 99,066.16 : x
  2. Step 2: Convert to fraction form
    220,667.68/330,868.08 = 99,066.16/x
  3. Step 3: Cross multiply
    220,667.68x = 330,868.08 × 99,066.16
  4. Step 4: Simplify right side
    220,667.68x = 32,777,830,152.17
  5. Step 5: Solve for x
    x = 32,777,830,152.17/220,667.68
  6. Step 6: Final answer
    x = 148,539.33

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1.5x scale

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.