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Finding the Fourth Proportional to 93,312,759.80, 139,969,139.70 and 84,809,703.80

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Solution

The fourth proportional to 93,312,759.80, 139,969,139.70 and 84,809,703.80 is: 127,214,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,759.80 : 139,969,139.70 = 84,809,703.80 : x
  2. Step 2: Convert to fraction form
    93,312,759.80/139,969,139.70 = 84,809,703.80/x
  3. Step 3: Cross multiply
    93,312,759.80x = 139,969,139.70 × 84,809,703.80
  4. Step 4: Simplify right side
    93,312,759.80x = 11,870,741,279,097,820
  5. Step 5: Solve for x
    x = 11,870,741,279,097,820/93,312,759.80
  6. Step 6: Final answer
    x = 127,214,555.70

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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.