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Finding the Fourth Proportional to 126,130,810.60, 189,196,215.90 and 126,130,810.60

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Solution

The fourth proportional to 126,130,810.60, 189,196,215.90 and 126,130,810.60 is: 189,196,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,130,810.60 : 189,196,215.90 = 126,130,810.60 : x
  2. Step 2: Convert to fraction form
    126,130,810.60/189,196,215.90 = 126,130,810.60/x
  3. Step 3: Cross multiply
    126,130,810.60x = 189,196,215.90 × 126,130,810.60
  4. Step 4: Simplify right side
    126,130,810.60x = 23,863,472,073,919,608
  5. Step 5: Solve for x
    x = 23,863,472,073,919,608/126,130,810.60
  6. Step 6: Final answer
    x = 189,196,215.90

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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.