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Finding the Fourth Proportional to 161,775,313.30, 242,662,969.95 and 161,775,313.30

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Solution

The fourth proportional to 161,775,313.30, 242,662,969.95 and 161,775,313.30 is: 242,662,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,775,313.30 : 242,662,969.95 = 161,775,313.30 : x
  2. Step 2: Convert to fraction form
    161,775,313.30/242,662,969.95 = 161,775,313.30/x
  3. Step 3: Cross multiply
    161,775,313.30x = 242,662,969.95 × 161,775,313.30
  4. Step 4: Simplify right side
    161,775,313.30x = 39,256,877,989,969,736
  5. Step 5: Solve for x
    x = 39,256,877,989,969,736/161,775,313.30
  6. Step 6: Final answer
    x = 242,662,969.95

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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.