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Finding the Fourth Proportional to 56,470.49, 84,811.04 and 49,718.46

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Solution

The fourth proportional to 56,470.49, 84,811.04 and 49,718.46 is: 74,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,470.49 : 84,811.04 = 49,718.46 : x
  2. Step 2: Convert to fraction form
    56,470.49/84,811.04 = 49,718.46/x
  3. Step 3: Cross multiply
    56,470.49x = 84,811.04 × 49,718.46
  4. Step 4: Simplify right side
    56,470.49x = 4,216,674,299.80
  5. Step 5: Solve for x
    x = 4,216,674,299.80/56,470.49
  6. Step 6: Final answer
    x = 74,670.40

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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.