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Finding the Fourth Proportional to 219,973.68, 303,563.52 and 124,478.64

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Solution

The fourth proportional to 219,973.68, 303,563.52 and 124,478.64 is: 171,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,973.68 : 303,563.52 = 124,478.64 : x
  2. Step 2: Convert to fraction form
    219,973.68/303,563.52 = 124,478.64/x
  3. Step 3: Cross multiply
    219,973.68x = 303,563.52 × 124,478.64
  4. Step 4: Simplify right side
    219,973.68x = 37,787,174,123.21
  5. Step 5: Solve for x
    x = 37,787,174,123.21/219,973.68
  6. Step 6: Final answer
    x = 171,780.43

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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.