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Finding the Fourth Proportional to 74,903,959.70, 112,355,939.55 and 57,897,847.70

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Solution

The fourth proportional to 74,903,959.70, 112,355,939.55 and 57,897,847.70 is: 86,846,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,903,959.70 : 112,355,939.55 = 57,897,847.70 : x
  2. Step 2: Convert to fraction form
    74,903,959.70/112,355,939.55 = 57,897,847.70/x
  3. Step 3: Cross multiply
    74,903,959.70x = 112,355,939.55 × 57,897,847.70
  4. Step 4: Simplify right side
    74,903,959.70x = 6,505,167,076,256,307
  5. Step 5: Solve for x
    x = 6,505,167,076,256,307/74,903,959.70
  6. Step 6: Final answer
    x = 86,846,771.55

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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.