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Finding the Fourth Proportional to 160,695.90, 221,739.96 and 89,075.34

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Solution

The fourth proportional to 160,695.90, 221,739.96 and 89,075.34 is: 122,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,695.90 : 221,739.96 = 89,075.34 : x
  2. Step 2: Convert to fraction form
    160,695.90/221,739.96 = 89,075.34/x
  3. Step 3: Cross multiply
    160,695.90x = 221,739.96 × 89,075.34
  4. Step 4: Simplify right side
    160,695.90x = 19,751,562,328.59
  5. Step 5: Solve for x
    x = 19,751,562,328.59/160,695.90
  6. Step 6: Final answer
    x = 122,912.67

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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.