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Finding the Fourth Proportional to 160,392.72, 221,334.06 and 91,484.91

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Solution

The fourth proportional to 160,392.72, 221,334.06 and 91,484.91 is: 126,244.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,392.72 : 221,334.06 = 91,484.91 : x
  2. Step 2: Convert to fraction form
    160,392.72/221,334.06 = 91,484.91/x
  3. Step 3: Cross multiply
    160,392.72x = 221,334.06 × 91,484.91
  4. Step 4: Simplify right side
    160,392.72x = 20,248,726,559.03
  5. Step 5: Solve for x
    x = 20,248,726,559.03/160,392.72
  6. Step 6: Final answer
    x = 126,244.67

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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.