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Finding the Fourth Proportional to 99,793,661.40, 149,690,492.10 and 98,449,968.60

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Solution

The fourth proportional to 99,793,661.40, 149,690,492.10 and 98,449,968.60 is: 147,674,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,793,661.40 : 149,690,492.10 = 98,449,968.60 : x
  2. Step 2: Convert to fraction form
    99,793,661.40/149,690,492.10 = 98,449,968.60/x
  3. Step 3: Cross multiply
    99,793,661.40x = 149,690,492.10 × 98,449,968.60
  4. Step 4: Simplify right side
    99,793,661.40x = 14,737,024,246,963,546
  5. Step 5: Solve for x
    x = 14,737,024,246,963,546/99,793,661.40
  6. Step 6: Final answer
    x = 147,674,952.90

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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.