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Finding the Fourth Proportional to 220,160.72, 303,525.24 and 143,528.24

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Solution

The fourth proportional to 220,160.72, 303,525.24 and 143,528.24 is: 197,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,160.72 : 303,525.24 = 143,528.24 : x
  2. Step 2: Convert to fraction form
    220,160.72/303,525.24 = 143,528.24/x
  3. Step 3: Cross multiply
    220,160.72x = 303,525.24 × 143,528.24
  4. Step 4: Simplify right side
    220,160.72x = 43,564,443,492.78
  5. Step 5: Solve for x
    x = 43,564,443,492.78/220,160.72
  6. Step 6: Final answer
    x = 197,875.64

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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.