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Finding the Fourth Proportional to 111,030.57, 166,485.89 and 57,590.07

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Solution

The fourth proportional to 111,030.57, 166,485.89 and 57,590.07 is: 86,354.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,030.57 : 166,485.89 = 57,590.07 : x
  2. Step 2: Convert to fraction form
    111,030.57/166,485.89 = 57,590.07/x
  3. Step 3: Cross multiply
    111,030.57x = 166,485.89 × 57,590.07
  4. Step 4: Simplify right side
    111,030.57x = 9,587,934,670.77
  5. Step 5: Solve for x
    x = 9,587,934,670.77/111,030.57
  6. Step 6: Final answer
    x = 86,354.01

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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.