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Finding the Fourth Proportional to 78,497.84, 108,329.87 and 44,970.32

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Solution

The fourth proportional to 78,497.84, 108,329.87 and 44,970.32 is: 62,060.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,497.84 : 108,329.87 = 44,970.32 : x
  2. Step 2: Convert to fraction form
    78,497.84/108,329.87 = 44,970.32/x
  3. Step 3: Cross multiply
    78,497.84x = 108,329.87 × 44,970.32
  4. Step 4: Simplify right side
    78,497.84x = 4,871,628,377.81
  5. Step 5: Solve for x
    x = 4,871,628,377.81/78,497.84
  6. Step 6: Final answer
    x = 62,060.67

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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.