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Finding the Fourth Proportional to 99,660,422.10, 149,490,633.15 and 99,660,422.10

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Solution

The fourth proportional to 99,660,422.10, 149,490,633.15 and 99,660,422.10 is: 149,490,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660,422.10 : 149,490,633.15 = 99,660,422.10 : x
  2. Step 2: Convert to fraction form
    99,660,422.10/149,490,633.15 = 99,660,422.10/x
  3. Step 3: Cross multiply
    99,660,422.10x = 149,490,633.15 × 99,660,422.10
  4. Step 4: Simplify right side
    99,660,422.10x = 14,898,299,599,725,252
  5. Step 5: Solve for x
    x = 14,898,299,599,725,252/99,660,422.10
  6. Step 6: Final answer
    x = 149,490,633.15

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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.