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Finding the Fourth Proportional to 70,380,015.30, 105,570,022.95 and 70,380,015.30

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Solution

The fourth proportional to 70,380,015.30, 105,570,022.95 and 70,380,015.30 is: 105,570,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,380,015.30 : 105,570,022.95 = 70,380,015.30 : x
  2. Step 2: Convert to fraction form
    70,380,015.30/105,570,022.95 = 70,380,015.30/x
  3. Step 3: Cross multiply
    70,380,015.30x = 105,570,022.95 × 70,380,015.30
  4. Step 4: Simplify right side
    70,380,015.30x = 7,430,019,830,442,351
  5. Step 5: Solve for x
    x = 7,430,019,830,442,351/70,380,015.30
  6. Step 6: Final answer
    x = 105,570,022.95

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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.