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Finding the Fourth Proportional to 116,603.46, 160,912.76 and 66,302.46

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Solution

The fourth proportional to 116,603.46, 160,912.76 and 66,302.46 is: 91,497.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,603.46 : 160,912.76 = 66,302.46 : x
  2. Step 2: Convert to fraction form
    116,603.46/160,912.76 = 66,302.46/x
  3. Step 3: Cross multiply
    116,603.46x = 160,912.76 × 66,302.46
  4. Step 4: Simplify right side
    116,603.46x = 10,668,911,501.88
  5. Step 5: Solve for x
    x = 10,668,911,501.88/116,603.46
  6. Step 6: Final answer
    x = 91,497.38

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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.