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Finding the Fourth Proportional to 64,972,858.40, 97,427,794.80 and 36,188,439.20

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Solution

The fourth proportional to 64,972,858.40, 97,427,794.80 and 36,188,439.20 is: 54,265,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,972,858.40 : 97,427,794.80 = 36,188,439.20 : x
  2. Step 2: Convert to fraction form
    64,972,858.40/97,427,794.80 = 36,188,439.20/x
  3. Step 3: Cross multiply
    64,972,858.40x = 97,427,794.80 × 36,188,439.20
  4. Step 4: Simplify right side
    64,972,858.40x = 3,525,759,828,509,876.50
  5. Step 5: Solve for x
    x = 3,525,759,828,509,876.50/64,972,858.40
  6. Step 6: Final answer
    x = 54,265,118.01

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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.