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Finding the Fourth Proportional to 247,056.94, 370,581.50 and 78,574.84

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Solution

The fourth proportional to 247,056.94, 370,581.50 and 78,574.84 is: 117,861.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,056.94 : 370,581.50 = 78,574.84 : x
  2. Step 2: Convert to fraction form
    247,056.94/370,581.50 = 78,574.84/x
  3. Step 3: Cross multiply
    247,056.94x = 370,581.50 × 78,574.84
  4. Step 4: Simplify right side
    247,056.94x = 29,118,382,069.46
  5. Step 5: Solve for x
    x = 29,118,382,069.46/247,056.94
  6. Step 6: Final answer
    x = 117,861.02

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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.