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Finding the Fourth Proportional to 88,573,685.60, 132,860,528.40 and 80,495,782.40

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Solution

The fourth proportional to 88,573,685.60, 132,860,528.40 and 80,495,782.40 is: 120,743,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573,685.60 : 132,860,528.40 = 80,495,782.40 : x
  2. Step 2: Convert to fraction form
    88,573,685.60/132,860,528.40 = 80,495,782.40/x
  3. Step 3: Cross multiply
    88,573,685.60x = 132,860,528.40 × 80,495,782.40
  4. Step 4: Simplify right side
    88,573,685.60x = 10,694,712,183,635,422
  5. Step 5: Solve for x
    x = 10,694,712,183,635,422/88,573,685.60
  6. Step 6: Final answer
    x = 120,743,673.60

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1.5x scale

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.