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Finding the Fourth Proportional to 53,621,870.40, 80,453,800.80 and 19,546,660.80

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Solution

The fourth proportional to 53,621,870.40, 80,453,800.80 and 19,546,660.80 is: 29,327,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,621,870.40 : 80,453,800.80 = 19,546,660.80 : x
  2. Step 2: Convert to fraction form
    53,621,870.40/80,453,800.80 = 19,546,660.80/x
  3. Step 3: Cross multiply
    53,621,870.40x = 80,453,800.80 × 19,546,660.80
  4. Step 4: Simplify right side
    53,621,870.40x = 1,572,603,154,308,368.75
  5. Step 5: Solve for x
    x = 1,572,603,154,308,368.75/53,621,870.40
  6. Step 6: Final answer
    x = 29,327,644.53

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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.