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Finding the Fourth Proportional to 201,218,401.80, 301,827,602.70 and 57,611,233.80

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Solution

The fourth proportional to 201,218,401.80, 301,827,602.70 and 57,611,233.80 is: 86,416,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,218,401.80 : 301,827,602.70 = 57,611,233.80 : x
  2. Step 2: Convert to fraction form
    201,218,401.80/301,827,602.70 = 57,611,233.80/x
  3. Step 3: Cross multiply
    201,218,401.80x = 301,827,602.70 × 57,611,233.80
  4. Step 4: Simplify right side
    201,218,401.80x = 17,388,660,586,443,210
  5. Step 5: Solve for x
    x = 17,388,660,586,443,210/201,218,401.80
  6. Step 6: Final answer
    x = 86,416,850.70

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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.