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Finding the Fourth Proportional to 243,534.44, 365,347.02 and 85,863.08

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Solution

The fourth proportional to 243,534.44, 365,347.02 and 85,863.08 is: 128,810.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,534.44 : 365,347.02 = 85,863.08 : x
  2. Step 2: Convert to fraction form
    243,534.44/365,347.02 = 85,863.08/x
  3. Step 3: Cross multiply
    243,534.44x = 365,347.02 × 85,863.08
  4. Step 4: Simplify right side
    243,534.44x = 31,369,820,406.02
  5. Step 5: Solve for x
    x = 31,369,820,406.02/243,534.44
  6. Step 6: Final answer
    x = 128,810.61

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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.