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Finding the Fourth Proportional to 98,668.29, 148,011.79 and 27,590.93

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Solution

The fourth proportional to 98,668.29, 148,011.79 and 27,590.93 is: 41,389.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,668.29 : 148,011.79 = 27,590.93 : x
  2. Step 2: Convert to fraction form
    98,668.29/148,011.79 = 27,590.93/x
  3. Step 3: Cross multiply
    98,668.29x = 148,011.79 × 27,590.93
  4. Step 4: Simplify right side
    98,668.29x = 4,083,782,734.81
  5. Step 5: Solve for x
    x = 4,083,782,734.81/98,668.29
  6. Step 6: Final answer
    x = 41,389.01

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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.