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Finding the Fourth Proportional to 117,429, 162,052.08 and 67,129.08

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Solution

The fourth proportional to 117,429, 162,052.08 and 67,129.08 is: 92,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,429 : 162,052.08 = 67,129.08 : x
  2. Step 2: Convert to fraction form
    117,429/162,052.08 = 67,129.08/x
  3. Step 3: Cross multiply
    117,429x = 162,052.08 × 67,129.08
  4. Step 4: Simplify right side
    117,429x = 10,878,407,042.49
  5. Step 5: Solve for x
    x = 10,878,407,042.49/117,429
  6. Step 6: Final answer
    x = 92,638.16

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1.5x scale

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.