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Finding the Fourth Proportional to 99,657,167.20, 149,485,750.80 and 99,657,167.20

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Solution

The fourth proportional to 99,657,167.20, 149,485,750.80 and 99,657,167.20 is: 149,485,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657,167.20 : 149,485,750.80 = 99,657,167.20 : x
  2. Step 2: Convert to fraction form
    99,657,167.20/149,485,750.80 = 99,657,167.20/x
  3. Step 3: Cross multiply
    99,657,167.20x = 149,485,750.80 × 99,657,167.20
  4. Step 4: Simplify right side
    99,657,167.20x = 14,897,326,461,493,136
  5. Step 5: Solve for x
    x = 14,897,326,461,493,136/99,657,167.20
  6. Step 6: Final answer
    x = 149,485,750.80

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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.