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Finding the Fourth Proportional to 111,555.93, 153,946.33 and 60,567.65

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Solution

The fourth proportional to 111,555.93, 153,946.33 and 60,567.65 is: 83,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,555.93 : 153,946.33 = 60,567.65 : x
  2. Step 2: Convert to fraction form
    111,555.93/153,946.33 = 60,567.65/x
  3. Step 3: Cross multiply
    111,555.93x = 153,946.33 × 60,567.65
  4. Step 4: Simplify right side
    111,555.93x = 9,324,167,667.67
  5. Step 5: Solve for x
    x = 9,324,167,667.67/111,555.93
  6. Step 6: Final answer
    x = 83,582.90

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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.