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Finding the Fourth Proportional to 114,486.90, 171,650.35 and 67,715.70

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Solution

The fourth proportional to 114,486.90, 171,650.35 and 67,715.70 is: 101,526.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,486.90 : 171,650.35 = 67,715.70 : x
  2. Step 2: Convert to fraction form
    114,486.90/171,650.35 = 67,715.70/x
  3. Step 3: Cross multiply
    114,486.90x = 171,650.35 × 67,715.70
  4. Step 4: Simplify right side
    114,486.90x = 11,623,423,605.50
  5. Step 5: Solve for x
    x = 11,623,423,605.50/114,486.90
  6. Step 6: Final answer
    x = 101,526.23

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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.