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Finding the Fourth Proportional to 99,652,014.70, 149,478,022.05 and 91,999,264.30

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Solution

The fourth proportional to 99,652,014.70, 149,478,022.05 and 91,999,264.30 is: 137,998,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,652,014.70 : 149,478,022.05 = 91,999,264.30 : x
  2. Step 2: Convert to fraction form
    99,652,014.70/149,478,022.05 = 91,999,264.30/x
  3. Step 3: Cross multiply
    99,652,014.70x = 149,478,022.05 × 91,999,264.30
  4. Step 4: Simplify right side
    99,652,014.70x = 13,751,868,057,619,178
  5. Step 5: Solve for x
    x = 13,751,868,057,619,178/99,652,014.70
  6. Step 6: Final answer
    x = 137,998,896.45

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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.