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Finding the Fourth Proportional to 70,340,122.37, 97,069,938.71 and 38,978,695.26

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Solution

The fourth proportional to 70,340,122.37, 97,069,938.71 and 38,978,695.26 is: 53,790,915.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,340,122.37 : 97,069,938.71 = 38,978,695.26 : x
  2. Step 2: Convert to fraction form
    70,340,122.37/97,069,938.71 = 38,978,695.26/x
  3. Step 3: Cross multiply
    70,340,122.37x = 97,069,938.71 × 38,978,695.26
  4. Step 4: Simplify right side
    70,340,122.37x = 3,783,659,559,689,074
  5. Step 5: Solve for x
    x = 3,783,659,559,689,074/70,340,122.37
  6. Step 6: Final answer
    x = 53,790,915.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.