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Finding the Fourth Proportional to 163,653.36, 225,831.96 and 91,054.32

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Solution

The fourth proportional to 163,653.36, 225,831.96 and 91,054.32 is: 125,649.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,653.36 : 225,831.96 = 91,054.32 : x
  2. Step 2: Convert to fraction form
    163,653.36/225,831.96 = 91,054.32/x
  3. Step 3: Cross multiply
    163,653.36x = 225,831.96 × 91,054.32
  4. Step 4: Simplify right side
    163,653.36x = 20,562,975,552.07
  5. Step 5: Solve for x
    x = 20,562,975,552.07/163,653.36
  6. Step 6: Final answer
    x = 125,649.58

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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.