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Finding the Fourth Proportional to 201,007,087.20, 301,510,630.80 and 64,692,470.70

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Solution

The fourth proportional to 201,007,087.20, 301,510,630.80 and 64,692,470.70 is: 97,038,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,007,087.20 : 301,510,630.80 = 64,692,470.70 : x
  2. Step 2: Convert to fraction form
    201,007,087.20/301,510,630.80 = 64,692,470.70/x
  3. Step 3: Cross multiply
    201,007,087.20x = 301,510,630.80 × 64,692,470.70
  4. Step 4: Simplify right side
    201,007,087.20x = 19,505,467,648,767,520
  5. Step 5: Solve for x
    x = 19,505,467,648,767,520/201,007,087.20
  6. Step 6: Final answer
    x = 97,038,706.05

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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.