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Finding the Fourth Proportional to 116,561.84, 160,840.21 and 65,572.85

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Solution

The fourth proportional to 116,561.84, 160,840.21 and 65,572.85 is: 90,482.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,561.84 : 160,840.21 = 65,572.85 : x
  2. Step 2: Convert to fraction form
    116,561.84/160,840.21 = 65,572.85/x
  3. Step 3: Cross multiply
    116,561.84x = 160,840.21 × 65,572.85
  4. Step 4: Simplify right side
    116,561.84x = 10,546,749,996.17
  5. Step 5: Solve for x
    x = 10,546,749,996.17/116,561.84
  6. Step 6: Final answer
    x = 90,482.02

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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.