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Finding the Fourth Proportional to 305,087.80, 457,674.90 and 94,703.80

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Solution

The fourth proportional to 305,087.80, 457,674.90 and 94,703.80 is: 142,069.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,087.80 : 457,674.90 = 94,703.80 : x
  2. Step 2: Convert to fraction form
    305,087.80/457,674.90 = 94,703.80/x
  3. Step 3: Cross multiply
    305,087.80x = 457,674.90 × 94,703.80
  4. Step 4: Simplify right side
    305,087.80x = 43,343,552,194.62
  5. Step 5: Solve for x
    x = 43,343,552,194.62/305,087.80
  6. Step 6: Final answer
    x = 142,069.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.