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Finding the Fourth Proportional to 88,970.78, 122,775.99 and 53,180.52

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Solution

The fourth proportional to 88,970.78, 122,775.99 and 53,180.52 is: 73,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,970.78 : 122,775.99 = 53,180.52 : x
  2. Step 2: Convert to fraction form
    88,970.78/122,775.99 = 53,180.52/x
  3. Step 3: Cross multiply
    88,970.78x = 122,775.99 × 53,180.52
  4. Step 4: Simplify right side
    88,970.78x = 6,529,290,991.71
  5. Step 5: Solve for x
    x = 6,529,290,991.71/88,970.78
  6. Step 6: Final answer
    x = 73,386.92

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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.