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Finding the Fourth Proportional to 116,783.85, 161,161.68 and 63,068.85

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Solution

The fourth proportional to 116,783.85, 161,161.68 and 63,068.85 is: 87,035.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,783.85 : 161,161.68 = 63,068.85 : x
  2. Step 2: Convert to fraction form
    116,783.85/161,161.68 = 63,068.85/x
  3. Step 3: Cross multiply
    116,783.85x = 161,161.68 × 63,068.85
  4. Step 4: Simplify right side
    116,783.85x = 10,164,281,821.67
  5. Step 5: Solve for x
    x = 10,164,281,821.67/116,783.85
  6. Step 6: Final answer
    x = 87,035.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.