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Finding the Fourth Proportional to 76,008.98, 104,866.80 and 49,185.42

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Solution

The fourth proportional to 76,008.98, 104,866.80 and 49,185.42 is: 67,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,008.98 : 104,866.80 = 49,185.42 : x
  2. Step 2: Convert to fraction form
    76,008.98/104,866.80 = 49,185.42/x
  3. Step 3: Cross multiply
    76,008.98x = 104,866.80 × 49,185.42
  4. Step 4: Simplify right side
    76,008.98x = 5,157,917,602.06
  5. Step 5: Solve for x
    x = 5,157,917,602.06/76,008.98
  6. Step 6: Final answer
    x = 67,859.32

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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.