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Finding the Fourth Proportional to 164,088.78, 246,133.20 and 53,280.78

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Solution

The fourth proportional to 164,088.78, 246,133.20 and 53,280.78 is: 79,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,088.78 : 246,133.20 = 53,280.78 : x
  2. Step 2: Convert to fraction form
    164,088.78/246,133.20 = 53,280.78/x
  3. Step 3: Cross multiply
    164,088.78x = 246,133.20 × 53,280.78
  4. Step 4: Simplify right side
    164,088.78x = 13,114,168,879.90
  5. Step 5: Solve for x
    x = 13,114,168,879.90/164,088.78
  6. Step 6: Final answer
    x = 79,921.18

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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.