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Finding the Fourth Proportional to 66,430,270.95, 99,645,406.43 and 66,430,270.95

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Solution

The fourth proportional to 66,430,270.95, 99,645,406.43 and 66,430,270.95 is: 99,645,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,270.95 : 99,645,406.43 = 66,430,270.95 : x
  2. Step 2: Convert to fraction form
    66,430,270.95/99,645,406.43 = 66,430,270.95/x
  3. Step 3: Cross multiply
    66,430,270.95x = 99,645,406.43 × 66,430,270.95
  4. Step 4: Simplify right side
    66,430,270.95x = 6,619,471,347,735,621
  5. Step 5: Solve for x
    x = 6,619,471,347,735,621/66,430,270.95
  6. Step 6: Final answer
    x = 99,645,406.43

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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.