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Finding the Fourth Proportional to 64,018,472.70, 88,345,485.75 and 34,649,800.11

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Solution

The fourth proportional to 64,018,472.70, 88,345,485.75 and 34,649,800.11 is: 47,816,720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,018,472.70 : 88,345,485.75 = 34,649,800.11 : x
  2. Step 2: Convert to fraction form
    64,018,472.70/88,345,485.75 = 34,649,800.11/x
  3. Step 3: Cross multiply
    64,018,472.70x = 88,345,485.75 × 34,649,800.11
  4. Step 4: Simplify right side
    64,018,472.70x = 3,061,153,421,858,353.50
  5. Step 5: Solve for x
    x = 3,061,153,421,858,353.50/64,018,472.70
  6. Step 6: Final answer
    x = 47,816,720.59

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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.