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Finding the Fourth Proportional to 116,777.50, 161,153.13 and 66,476.50

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Solution

The fourth proportional to 116,777.50, 161,153.13 and 66,476.50 is: 91,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,777.50 : 161,153.13 = 66,476.50 : x
  2. Step 2: Convert to fraction form
    116,777.50/161,153.13 = 66,476.50/x
  3. Step 3: Cross multiply
    116,777.50x = 161,153.13 × 66,476.50
  4. Step 4: Simplify right side
    116,777.50x = 10,712,896,046.45
  5. Step 5: Solve for x
    x = 10,712,896,046.45/116,777.50
  6. Step 6: Final answer
    x = 91,737.67

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1.5x scale

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.