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Finding the Fourth Proportional to 61,236,205.20, 91,854,307.80 and 18,101,566.80

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Solution

The fourth proportional to 61,236,205.20, 91,854,307.80 and 18,101,566.80 is: 27,152,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,236,205.20 : 91,854,307.80 = 18,101,566.80 : x
  2. Step 2: Convert to fraction form
    61,236,205.20/91,854,307.80 = 18,101,566.80/x
  3. Step 3: Cross multiply
    61,236,205.20x = 91,854,307.80 × 18,101,566.80
  4. Step 4: Simplify right side
    61,236,205.20x = 1,662,706,888,509,461
  5. Step 5: Solve for x
    x = 1,662,706,888,509,461/61,236,205.20
  6. Step 6: Final answer
    x = 27,152,350.20

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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.