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Finding the Fourth Proportional to 88,847,998.80, 133,271,998.20 and 28,269,848.40

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Solution

The fourth proportional to 88,847,998.80, 133,271,998.20 and 28,269,848.40 is: 42,404,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,847,998.80 : 133,271,998.20 = 28,269,848.40 : x
  2. Step 2: Convert to fraction form
    88,847,998.80/133,271,998.20 = 28,269,848.40/x
  3. Step 3: Cross multiply
    88,847,998.80x = 133,271,998.20 × 28,269,848.40
  4. Step 4: Simplify right side
    88,847,998.80x = 3,767,579,185,079,073
  5. Step 5: Solve for x
    x = 3,767,579,185,079,073/88,847,998.80
  6. Step 6: Final answer
    x = 42,404,772.60

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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.