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Finding the Fourth Proportional to 117,445.54, 162,007.06 and 74,956.18

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Solution

The fourth proportional to 117,445.54, 162,007.06 and 74,956.18 is: 103,396.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,445.54 : 162,007.06 = 74,956.18 : x
  2. Step 2: Convert to fraction form
    117,445.54/162,007.06 = 74,956.18/x
  3. Step 3: Cross multiply
    117,445.54x = 162,007.06 × 74,956.18
  4. Step 4: Simplify right side
    117,445.54x = 12,143,429,353.21
  5. Step 5: Solve for x
    x = 12,143,429,353.21/117,445.54
  6. Step 6: Final answer
    x = 103,396.26

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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.