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Finding the Fourth Proportional to 69,397,709.60, 104,096,564.40 and 35,385,485.60

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Solution

The fourth proportional to 69,397,709.60, 104,096,564.40 and 35,385,485.60 is: 53,078,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,397,709.60 : 104,096,564.40 = 35,385,485.60 : x
  2. Step 2: Convert to fraction form
    69,397,709.60/104,096,564.40 = 35,385,485.60/x
  3. Step 3: Cross multiply
    69,397,709.60x = 104,096,564.40 × 35,385,485.60
  4. Step 4: Simplify right side
    69,397,709.60x = 3,683,507,480,585,673
  5. Step 5: Solve for x
    x = 3,683,507,480,585,673/69,397,709.60
  6. Step 6: Final answer
    x = 53,078,228.40

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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.