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Finding the Fourth Proportional to 64,807,093.80, 96,971,492.16 and 38,915,163.74

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Solution

The fourth proportional to 64,807,093.80, 96,971,492.16 and 38,915,163.74 is: 58,229,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,807,093.80 : 96,971,492.16 = 38,915,163.74 : x
  2. Step 2: Convert to fraction form
    64,807,093.80/96,971,492.16 = 38,915,163.74/x
  3. Step 3: Cross multiply
    64,807,093.80x = 96,971,492.16 × 38,915,163.74
  4. Step 4: Simplify right side
    64,807,093.80x = 3,773,661,495,760,955
  5. Step 5: Solve for x
    x = 3,773,661,495,760,955/64,807,093.80
  6. Step 6: Final answer
    x = 58,229,142.44

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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.