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Finding the Fourth Proportional to 117,615.51, 175,178.30 and 117,042.03

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Solution

The fourth proportional to 117,615.51, 175,178.30 and 117,042.03 is: 174,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,615.51 : 175,178.30 = 117,042.03 : x
  2. Step 2: Convert to fraction form
    117,615.51/175,178.30 = 117,042.03/x
  3. Step 3: Cross multiply
    117,615.51x = 175,178.30 × 117,042.03
  4. Step 4: Simplify right side
    117,615.51x = 20,503,223,258.74
  5. Step 5: Solve for x
    x = 20,503,223,258.74/117,615.51
  6. Step 6: Final answer
    x = 174,324.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.