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Finding the Fourth Proportional to 70,903,807.62, 97,927,967.04 and 47,658,578.28

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Solution

The fourth proportional to 70,903,807.62, 97,927,967.04 and 47,658,578.28 is: 65,823,089.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,903,807.62 : 97,927,967.04 = 47,658,578.28 : x
  2. Step 2: Convert to fraction form
    70,903,807.62/97,927,967.04 = 47,658,578.28/x
  3. Step 3: Cross multiply
    70,903,807.62x = 97,927,967.04 × 47,658,578.28
  4. Step 4: Simplify right side
    70,903,807.62x = 4,667,107,682,977,100
  5. Step 5: Solve for x
    x = 4,667,107,682,977,100/70,903,807.62
  6. Step 6: Final answer
    x = 65,823,089.61

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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.