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Finding the Fourth Proportional to 181,828.80, 272,613.60 and 69,465.60

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Solution

The fourth proportional to 181,828.80, 272,613.60 and 69,465.60 is: 104,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,828.80 : 272,613.60 = 69,465.60 : x
  2. Step 2: Convert to fraction form
    181,828.80/272,613.60 = 69,465.60/x
  3. Step 3: Cross multiply
    181,828.80x = 272,613.60 × 69,465.60
  4. Step 4: Simplify right side
    181,828.80x = 18,937,267,292.16
  5. Step 5: Solve for x
    x = 18,937,267,292.16/181,828.80
  6. Step 6: Final answer
    x = 104,148.89

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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.