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Finding the Fourth Proportional to 159,586.63, 220,226.81 and 87,973.32

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Solution

The fourth proportional to 159,586.63, 220,226.81 and 87,973.32 is: 121,401.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,586.63 : 220,226.81 = 87,973.32 : x
  2. Step 2: Convert to fraction form
    159,586.63/220,226.81 = 87,973.32/x
  3. Step 3: Cross multiply
    159,586.63x = 220,226.81 × 87,973.32
  4. Step 4: Simplify right side
    159,586.63x = 19,374,083,628.71
  5. Step 5: Solve for x
    x = 19,374,083,628.71/159,586.63
  6. Step 6: Final answer
    x = 121,401.67

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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.