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Finding the Fourth Proportional to 132,064,309.60, 198,143,703.60 and 55,410,834.40

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Solution

The fourth proportional to 132,064,309.60, 198,143,703.60 and 55,410,834.40 is: 83,136,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,064,309.60 : 198,143,703.60 = 55,410,834.40 : x
  2. Step 2: Convert to fraction form
    132,064,309.60/198,143,703.60 = 55,410,834.40/x
  3. Step 3: Cross multiply
    132,064,309.60x = 198,143,703.60 × 55,410,834.40
  4. Step 4: Simplify right side
    132,064,309.60x = 10,979,307,947,582,284
  5. Step 5: Solve for x
    x = 10,979,307,947,582,284/132,064,309.60
  6. Step 6: Final answer
    x = 83,136,071.97

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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.