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Finding the Fourth Proportional to 148,820, 223,040.16 and 69,760.04

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Solution

The fourth proportional to 148,820, 223,040.16 and 69,760.04 is: 104,551.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,820 : 223,040.16 = 69,760.04 : x
  2. Step 2: Convert to fraction form
    148,820/223,040.16 = 69,760.04/x
  3. Step 3: Cross multiply
    148,820x = 223,040.16 × 69,760.04
  4. Step 4: Simplify right side
    148,820x = 15,559,290,483.21
  5. Step 5: Solve for x
    x = 15,559,290,483.21/148,820
  6. Step 6: Final answer
    x = 104,551.07

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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.