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Finding the Fourth Proportional to 66,163,460.80, 99,351,479.40 and 50,007,654.40

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Solution

The fourth proportional to 66,163,460.80, 99,351,479.40 and 50,007,654.40 is: 75,091,816.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,163,460.80 : 99,351,479.40 = 50,007,654.40 : x
  2. Step 2: Convert to fraction form
    66,163,460.80/99,351,479.40 = 50,007,654.40/x
  3. Step 3: Cross multiply
    66,163,460.80x = 99,351,479.40 × 50,007,654.40
  4. Step 4: Simplify right side
    66,163,460.80x = 4,968,334,445,963,920
  5. Step 5: Solve for x
    x = 4,968,334,445,963,920/66,163,460.80
  6. Step 6: Final answer
    x = 75,091,816.33

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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.