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Finding the Fourth Proportional to 201,208,002.90, 301,812,004.35 and 201,208,002.90

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Solution

The fourth proportional to 201,208,002.90, 301,812,004.35 and 201,208,002.90 is: 301,812,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,208,002.90 : 301,812,004.35 = 201,208,002.90 : x
  2. Step 2: Convert to fraction form
    201,208,002.90/301,812,004.35 = 201,208,002.90/x
  3. Step 3: Cross multiply
    201,208,002.90x = 301,812,004.35 × 201,208,002.90
  4. Step 4: Simplify right side
    201,208,002.90x = 60,726,990,646,509,616
  5. Step 5: Solve for x
    x = 60,726,990,646,509,616/201,208,002.90
  6. Step 6: Final answer
    x = 301,812,004.35

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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.