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Finding the Fourth Proportional to 66,570,669.60, 99,856,004.40 and 32,474,464.80

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Solution

The fourth proportional to 66,570,669.60, 99,856,004.40 and 32,474,464.80 is: 48,711,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570,669.60 : 99,856,004.40 = 32,474,464.80 : x
  2. Step 2: Convert to fraction form
    66,570,669.60/99,856,004.40 = 32,474,464.80/x
  3. Step 3: Cross multiply
    66,570,669.60x = 99,856,004.40 × 32,474,464.80
  4. Step 4: Simplify right side
    66,570,669.60x = 3,242,770,299,956,445.50
  5. Step 5: Solve for x
    x = 3,242,770,299,956,445.50/66,570,669.60
  6. Step 6: Final answer
    x = 48,711,697.20

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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.