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Finding the Fourth Proportional to 109,133.68, 150,561.84 and 61,376.08

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Solution

The fourth proportional to 109,133.68, 150,561.84 and 61,376.08 is: 84,675.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,133.68 : 150,561.84 = 61,376.08 : x
  2. Step 2: Convert to fraction form
    109,133.68/150,561.84 = 61,376.08/x
  3. Step 3: Cross multiply
    109,133.68x = 150,561.84 × 61,376.08
  4. Step 4: Simplify right side
    109,133.68x = 9,240,895,536.79
  5. Step 5: Solve for x
    x = 9,240,895,536.79/109,133.68
  6. Step 6: Final answer
    x = 84,675.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.