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Finding the Fourth Proportional to 146,643.66, 202,368.25 and 79,575.66

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Solution

The fourth proportional to 146,643.66, 202,368.25 and 79,575.66 is: 109,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,643.66 : 202,368.25 = 79,575.66 : x
  2. Step 2: Convert to fraction form
    146,643.66/202,368.25 = 79,575.66/x
  3. Step 3: Cross multiply
    146,643.66x = 202,368.25 × 79,575.66
  4. Step 4: Simplify right side
    146,643.66x = 16,103,586,857.86
  5. Step 5: Solve for x
    x = 16,103,586,857.86/146,643.66
  6. Step 6: Final answer
    x = 109,814.41

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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.