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Finding the Fourth Proportional to 73,368,945.60, 110,053,418.40 and 72,235,204.80

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Solution

The fourth proportional to 73,368,945.60, 110,053,418.40 and 72,235,204.80 is: 108,352,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,368,945.60 : 110,053,418.40 = 72,235,204.80 : x
  2. Step 2: Convert to fraction form
    73,368,945.60/110,053,418.40 = 72,235,204.80/x
  3. Step 3: Cross multiply
    73,368,945.60x = 110,053,418.40 × 72,235,204.80
  4. Step 4: Simplify right side
    73,368,945.60x = 7,949,731,217,064,088
  5. Step 5: Solve for x
    x = 7,949,731,217,064,088/73,368,945.60
  6. Step 6: Final answer
    x = 108,352,807.20

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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.