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Finding the Fourth Proportional to 158,364,020.80, 222,011,960 and 158,364,020.80

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Solution

The fourth proportional to 158,364,020.80, 222,011,960 and 158,364,020.80 is: 222,011,960

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,364,020.80 : 222,011,960 = 158,364,020.80 : x
  2. Step 2: Convert to fraction form
    158,364,020.80/222,011,960 = 158,364,020.80/x
  3. Step 3: Cross multiply
    158,364,020.80x = 222,011,960 × 158,364,020.80
  4. Step 4: Simplify right side
    158,364,020.80x = 35,158,706,651,288,772
  5. Step 5: Solve for x
    x = 35,158,706,651,288,772/158,364,020.80
  6. Step 6: Final answer
    x = 222,011,960

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.