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Finding the Fourth Proportional to 117,378.54, 175,916.88 and 53,289.90

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Solution

The fourth proportional to 117,378.54, 175,916.88 and 53,289.90 is: 79,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,378.54 : 175,916.88 = 53,289.90 : x
  2. Step 2: Convert to fraction form
    117,378.54/175,916.88 = 53,289.90/x
  3. Step 3: Cross multiply
    117,378.54x = 175,916.88 × 53,289.90
  4. Step 4: Simplify right side
    117,378.54x = 9,374,592,943.51
  5. Step 5: Solve for x
    x = 9,374,592,943.51/117,378.54
  6. Step 6: Final answer
    x = 79,866.33

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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.