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Finding the Fourth Proportional to 55,369,985.80, 83,054,978.70 and 14,980,469.80

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Solution

The fourth proportional to 55,369,985.80, 83,054,978.70 and 14,980,469.80 is: 22,470,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,369,985.80 : 83,054,978.70 = 14,980,469.80 : x
  2. Step 2: Convert to fraction form
    55,369,985.80/83,054,978.70 = 14,980,469.80/x
  3. Step 3: Cross multiply
    55,369,985.80x = 83,054,978.70 × 14,980,469.80
  4. Step 4: Simplify right side
    55,369,985.80x = 1,244,202,600,154,993.25
  5. Step 5: Solve for x
    x = 1,244,202,600,154,993.25/55,369,985.80
  6. Step 6: Final answer
    x = 22,470,704.70

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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.