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Finding the Fourth Proportional to 161,566.88, 222,817.13 and 101,143.02

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Solution

The fourth proportional to 161,566.88, 222,817.13 and 101,143.02 is: 139,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,566.88 : 222,817.13 = 101,143.02 : x
  2. Step 2: Convert to fraction form
    161,566.88/222,817.13 = 101,143.02/x
  3. Step 3: Cross multiply
    161,566.88x = 222,817.13 × 101,143.02
  4. Step 4: Simplify right side
    161,566.88x = 22,536,397,688.79
  5. Step 5: Solve for x
    x = 22,536,397,688.79/161,566.88
  6. Step 6: Final answer
    x = 139,486.50

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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.