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Finding the Fourth Proportional to 48,558,666.45, 72,837,999.68 and 48,558,666.45

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Solution

The fourth proportional to 48,558,666.45, 72,837,999.68 and 48,558,666.45 is: 72,837,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,558,666.45 : 72,837,999.68 = 48,558,666.45 : x
  2. Step 2: Convert to fraction form
    48,558,666.45/72,837,999.68 = 48,558,666.45/x
  3. Step 3: Cross multiply
    48,558,666.45x = 72,837,999.68 × 48,558,666.45
  4. Step 4: Simplify right side
    48,558,666.45x = 3,536,916,131,103,533.50
  5. Step 5: Solve for x
    x = 3,536,916,131,103,533.50/48,558,666.45
  6. Step 6: Final answer
    x = 72,837,999.68

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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.