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Finding the Fourth Proportional to 68,698,858.40, 103,048,287.60 and 34,686,634.40

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Solution

The fourth proportional to 68,698,858.40, 103,048,287.60 and 34,686,634.40 is: 52,029,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,698,858.40 : 103,048,287.60 = 34,686,634.40 : x
  2. Step 2: Convert to fraction form
    68,698,858.40/103,048,287.60 = 34,686,634.40/x
  3. Step 3: Cross multiply
    68,698,858.40x = 103,048,287.60 × 34,686,634.40
  4. Step 4: Simplify right side
    68,698,858.40x = 3,574,398,277,527,253
  5. Step 5: Solve for x
    x = 3,574,398,277,527,253/68,698,858.40
  6. Step 6: Final answer
    x = 52,029,951.60

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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.