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Finding the Fourth Proportional to 159,776.94, 220,492.14 and 88,157.10

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Solution

The fourth proportional to 159,776.94, 220,492.14 and 88,157.10 is: 121,656.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,776.94 : 220,492.14 = 88,157.10 : x
  2. Step 2: Convert to fraction form
    159,776.94/220,492.14 = 88,157.10/x
  3. Step 3: Cross multiply
    159,776.94x = 220,492.14 × 88,157.10
  4. Step 4: Simplify right side
    159,776.94x = 19,437,947,635.19
  5. Step 5: Solve for x
    x = 19,437,947,635.19/159,776.94
  6. Step 6: Final answer
    x = 121,656.78

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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.