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Finding the Fourth Proportional to 130,045.64, 194,908.95 and 73,932.75

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Solution

The fourth proportional to 130,045.64, 194,908.95 and 73,932.75 is: 110,808.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,045.64 : 194,908.95 = 73,932.75 : x
  2. Step 2: Convert to fraction form
    130,045.64/194,908.95 = 73,932.75/x
  3. Step 3: Cross multiply
    130,045.64x = 194,908.95 × 73,932.75
  4. Step 4: Simplify right side
    130,045.64x = 14,410,154,673.11
  5. Step 5: Solve for x
    x = 14,410,154,673.11/130,045.64
  6. Step 6: Final answer
    x = 110,808.45

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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.