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Finding the Fourth Proportional to 117,672.35, 162,411.35 and 74,703.06

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Solution

The fourth proportional to 117,672.35, 162,411.35 and 74,703.06 is: 103,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,672.35 : 162,411.35 = 74,703.06 : x
  2. Step 2: Convert to fraction form
    117,672.35/162,411.35 = 74,703.06/x
  3. Step 3: Cross multiply
    117,672.35x = 162,411.35 × 74,703.06
  4. Step 4: Simplify right side
    117,672.35x = 12,132,624,450.22
  5. Step 5: Solve for x
    x = 12,132,624,450.22/117,672.35
  6. Step 6: Final answer
    x = 103,105.15

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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.