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Finding the Fourth Proportional to 146,653.25, 202,381.49 and 79,585.25

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Solution

The fourth proportional to 146,653.25, 202,381.49 and 79,585.25 is: 109,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,653.25 : 202,381.49 = 79,585.25 : x
  2. Step 2: Convert to fraction form
    146,653.25/202,381.49 = 79,585.25/x
  3. Step 3: Cross multiply
    146,653.25x = 202,381.49 × 79,585.25
  4. Step 4: Simplify right side
    146,653.25x = 16,106,581,477.02
  5. Step 5: Solve for x
    x = 16,106,581,477.02/146,653.25
  6. Step 6: Final answer
    x = 109,827.65

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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.