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Finding the Fourth Proportional to 235,095.84, 324,386.64 and 139,632.48

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Solution

The fourth proportional to 235,095.84, 324,386.64 and 139,632.48 is: 192,665.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,095.84 : 324,386.64 = 139,632.48 : x
  2. Step 2: Convert to fraction form
    235,095.84/324,386.64 = 139,632.48/x
  3. Step 3: Cross multiply
    235,095.84x = 324,386.64 × 139,632.48
  4. Step 4: Simplify right side
    235,095.84x = 45,294,911,022.07
  5. Step 5: Solve for x
    x = 45,294,911,022.07/235,095.84
  6. Step 6: Final answer
    x = 192,665.73

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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.