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Finding the Fourth Proportional to 116,038.52, 173,938.70 and 66,012.11

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Solution

The fourth proportional to 116,038.52, 173,938.70 and 66,012.11 is: 98,950.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,038.52 : 173,938.70 = 66,012.11 : x
  2. Step 2: Convert to fraction form
    116,038.52/173,938.70 = 66,012.11/x
  3. Step 3: Cross multiply
    116,038.52x = 173,938.70 × 66,012.11
  4. Step 4: Simplify right side
    116,038.52x = 11,482,059,892.99
  5. Step 5: Solve for x
    x = 11,482,059,892.99/116,038.52
  6. Step 6: Final answer
    x = 98,950.42

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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.