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Finding the Fourth Proportional to 160,371, 221,057.01 and 126,325.58

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Solution

The fourth proportional to 160,371, 221,057.01 and 126,325.58 is: 174,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,371 : 221,057.01 = 126,325.58 : x
  2. Step 2: Convert to fraction form
    160,371/221,057.01 = 126,325.58/x
  3. Step 3: Cross multiply
    160,371x = 221,057.01 × 126,325.58
  4. Step 4: Simplify right side
    160,371x = 27,925,153,896.03
  5. Step 5: Solve for x
    x = 27,925,153,896.03/160,371
  6. Step 6: Final answer
    x = 174,128.45

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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.