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Finding the Fourth Proportional to 111,831.98, 154,332.36 and 64,094.54

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Solution

The fourth proportional to 111,831.98, 154,332.36 and 64,094.54 is: 88,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,831.98 : 154,332.36 = 64,094.54 : x
  2. Step 2: Convert to fraction form
    111,831.98/154,332.36 = 64,094.54/x
  3. Step 3: Cross multiply
    111,831.98x = 154,332.36 × 64,094.54
  4. Step 4: Simplify right side
    111,831.98x = 9,891,860,849.65
  5. Step 5: Solve for x
    x = 9,891,860,849.65/111,831.98
  6. Step 6: Final answer
    x = 88,452.89

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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.