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Finding the Fourth Proportional to 163,131.55, 224,883.25 and 115,300.51

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Solution

The fourth proportional to 163,131.55, 224,883.25 and 115,300.51 is: 158,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,131.55 : 224,883.25 = 115,300.51 : x
  2. Step 2: Convert to fraction form
    163,131.55/224,883.25 = 115,300.51/x
  3. Step 3: Cross multiply
    163,131.55x = 224,883.25 × 115,300.51
  4. Step 4: Simplify right side
    163,131.55x = 25,929,153,415.46
  5. Step 5: Solve for x
    x = 25,929,153,415.46/163,131.55
  6. Step 6: Final answer
    x = 158,946.28

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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.