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Finding the Fourth Proportional to 161,157.17, 222,410.14 and 103,915.67

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Solution

The fourth proportional to 161,157.17, 222,410.14 and 103,915.67 is: 143,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,157.17 : 222,410.14 = 103,915.67 : x
  2. Step 2: Convert to fraction form
    161,157.17/222,410.14 = 103,915.67/x
  3. Step 3: Cross multiply
    161,157.17x = 222,410.14 × 103,915.67
  4. Step 4: Simplify right side
    161,157.17x = 23,111,897,341.05
  5. Step 5: Solve for x
    x = 23,111,897,341.05/161,157.17
  6. Step 6: Final answer
    x = 143,412.15

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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.