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Finding the Fourth Proportional to 121,697.40, 182,614.83 and 65,536.32

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Solution

The fourth proportional to 121,697.40, 182,614.83 and 65,536.32 is: 98,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,697.40 : 182,614.83 = 65,536.32 : x
  2. Step 2: Convert to fraction form
    121,697.40/182,614.83 = 65,536.32/x
  3. Step 3: Cross multiply
    121,697.40x = 182,614.83 × 65,536.32
  4. Step 4: Simplify right side
    121,697.40x = 11,967,903,935.63
  5. Step 5: Solve for x
    x = 11,967,903,935.63/121,697.40
  6. Step 6: Final answer
    x = 98,341.49

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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.