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Finding the Fourth Proportional to 78,304.84, 108,066 and 44,313.28

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Solution

The fourth proportional to 78,304.84, 108,066 and 44,313.28 is: 61,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,304.84 : 108,066 = 44,313.28 : x
  2. Step 2: Convert to fraction form
    78,304.84/108,066 = 44,313.28/x
  3. Step 3: Cross multiply
    78,304.84x = 108,066 × 44,313.28
  4. Step 4: Simplify right side
    78,304.84x = 4,788,758,916.48
  5. Step 5: Solve for x
    x = 4,788,758,916.48/78,304.84
  6. Step 6: Final answer
    x = 61,155.34

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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.