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Finding the Fourth Proportional to 117,972.56, 176,903.16 and 43,039.76

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Solution

The fourth proportional to 117,972.56, 176,903.16 and 43,039.76 is: 64,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,972.56 : 176,903.16 = 43,039.76 : x
  2. Step 2: Convert to fraction form
    117,972.56/176,903.16 = 43,039.76/x
  3. Step 3: Cross multiply
    117,972.56x = 176,903.16 × 43,039.76
  4. Step 4: Simplify right side
    117,972.56x = 7,613,869,549.64
  5. Step 5: Solve for x
    x = 7,613,869,549.64/117,972.56
  6. Step 6: Final answer
    x = 64,539.33

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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.