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Finding the Fourth Proportional to 93,312,093.80, 139,968,140.70 and 84,809,037.80

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Solution

The fourth proportional to 93,312,093.80, 139,968,140.70 and 84,809,037.80 is: 127,213,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,093.80 : 139,968,140.70 = 84,809,037.80 : x
  2. Step 2: Convert to fraction form
    93,312,093.80/139,968,140.70 = 84,809,037.80/x
  3. Step 3: Cross multiply
    93,312,093.80x = 139,968,140.70 × 84,809,037.80
  4. Step 4: Simplify right side
    93,312,093.80x = 11,870,563,335,422,018
  5. Step 5: Solve for x
    x = 11,870,563,335,422,018/93,312,093.80
  6. Step 6: Final answer
    x = 127,213,556.70

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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.