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Finding the Fourth Proportional to 109,674.51, 151,349.01 and 61,277.31

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Solution

The fourth proportional to 109,674.51, 151,349.01 and 61,277.31 is: 84,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,674.51 : 151,349.01 = 61,277.31 : x
  2. Step 2: Convert to fraction form
    109,674.51/151,349.01 = 61,277.31/x
  3. Step 3: Cross multiply
    109,674.51x = 151,349.01 × 61,277.31
  4. Step 4: Simplify right side
    109,674.51x = 9,274,259,974.17
  5. Step 5: Solve for x
    x = 9,274,259,974.17/109,674.51
  6. Step 6: Final answer
    x = 84,561.68

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1.5x scale

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.