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Finding the Fourth Proportional to 199,705.52, 299,525.72 and 66,586.88

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Solution

The fourth proportional to 199,705.52, 299,525.72 and 66,586.88 is: 99,869.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,705.52 : 299,525.72 = 66,586.88 : x
  2. Step 2: Convert to fraction form
    199,705.52/299,525.72 = 66,586.88/x
  3. Step 3: Cross multiply
    199,705.52x = 299,525.72 × 66,586.88
  4. Step 4: Simplify right side
    199,705.52x = 19,944,483,174.55
  5. Step 5: Solve for x
    x = 19,944,483,174.55/199,705.52
  6. Step 6: Final answer
    x = 99,869.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.