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Finding the Fourth Proportional to 243,847.63, 365,695.53 and 86,039.11

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Solution

The fourth proportional to 243,847.63, 365,695.53 and 86,039.11 is: 129,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,847.63 : 365,695.53 = 86,039.11 : x
  2. Step 2: Convert to fraction form
    243,847.63/365,695.53 = 86,039.11/x
  3. Step 3: Cross multiply
    243,847.63x = 365,695.53 × 86,039.11
  4. Step 4: Simplify right side
    243,847.63x = 31,464,117,932.18
  5. Step 5: Solve for x
    x = 31,464,117,932.18/243,847.63
  6. Step 6: Final answer
    x = 129,031.88

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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.