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Finding the Fourth Proportional to 93,985,515.39, 140,978,079.30 and 53,026,361.10

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Solution

The fourth proportional to 93,985,515.39, 140,978,079.30 and 53,026,361.10 is: 79,539,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,985,515.39 : 140,978,079.30 = 53,026,361.10 : x
  2. Step 2: Convert to fraction form
    93,985,515.39/140,978,079.30 = 53,026,361.10/x
  3. Step 3: Cross multiply
    93,985,515.39x = 140,978,079.30 × 53,026,361.10
  4. Step 4: Simplify right side
    93,985,515.39x = 7,475,554,540,146,236
  5. Step 5: Solve for x
    x = 7,475,554,540,146,236/93,985,515.39
  6. Step 6: Final answer
    x = 79,539,432.32

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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.