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Finding the Fourth Proportional to 201,210.80, 301,816.20 and 148,066.70

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Solution

The fourth proportional to 201,210.80, 301,816.20 and 148,066.70 is: 222,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,210.80 : 301,816.20 = 148,066.70 : x
  2. Step 2: Convert to fraction form
    201,210.80/301,816.20 = 148,066.70/x
  3. Step 3: Cross multiply
    201,210.80x = 301,816.20 × 148,066.70
  4. Step 4: Simplify right side
    201,210.80x = 44,688,928,740.54
  5. Step 5: Solve for x
    x = 44,688,928,740.54/201,210.80
  6. Step 6: Final answer
    x = 222,100.05

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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.