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Finding the Fourth Proportional to 51,793,094.40, 77,698,972.80 and 21,504,019.20

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Solution

The fourth proportional to 51,793,094.40, 77,698,972.80 and 21,504,019.20 is: 32,259,903.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,793,094.40 : 77,698,972.80 = 21,504,019.20 : x
  2. Step 2: Convert to fraction form
    51,793,094.40/77,698,972.80 = 21,504,019.20/x
  3. Step 3: Cross multiply
    51,793,094.40x = 77,698,972.80 × 21,504,019.20
  4. Step 4: Simplify right side
    51,793,094.40x = 1,670,840,202,911,477.75
  5. Step 5: Solve for x
    x = 1,670,840,202,911,477.75/51,793,094.40
  6. Step 6: Final answer
    x = 32,259,903.03

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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.