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Finding the Fourth Proportional to 68,688,030.80, 96,418,334.80 and 68,688,030.80

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Solution

The fourth proportional to 68,688,030.80, 96,418,334.80 and 68,688,030.80 is: 96,418,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688,030.80 : 96,418,334.80 = 68,688,030.80 : x
  2. Step 2: Convert to fraction form
    68,688,030.80/96,418,334.80 = 68,688,030.80/x
  3. Step 3: Cross multiply
    68,688,030.80x = 96,418,334.80 × 68,688,030.80
  4. Step 4: Simplify right side
    68,688,030.80x = 6,622,785,550,427,111
  5. Step 5: Solve for x
    x = 6,622,785,550,427,111/68,688,030.80
  6. Step 6: Final answer
    x = 96,418,334.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.