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Finding the Fourth Proportional to 69,565,657.60, 104,348,486.40 and 18,452,843.20

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Solution

The fourth proportional to 69,565,657.60, 104,348,486.40 and 18,452,843.20 is: 27,679,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,565,657.60 : 104,348,486.40 = 18,452,843.20 : x
  2. Step 2: Convert to fraction form
    69,565,657.60/104,348,486.40 = 18,452,843.20/x
  3. Step 3: Cross multiply
    69,565,657.60x = 104,348,486.40 × 18,452,843.20
  4. Step 4: Simplify right side
    69,565,657.60x = 1,925,526,257,696,532.50
  5. Step 5: Solve for x
    x = 1,925,526,257,696,532.50/69,565,657.60
  6. Step 6: Final answer
    x = 27,679,264.80

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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.