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Finding the Fourth Proportional to 117,477.21, 162,114.21 and 63,761.07

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Solution

The fourth proportional to 117,477.21, 162,114.21 and 63,761.07 is: 87,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,477.21 : 162,114.21 = 63,761.07 : x
  2. Step 2: Convert to fraction form
    117,477.21/162,114.21 = 63,761.07/x
  3. Step 3: Cross multiply
    117,477.21x = 162,114.21 × 63,761.07
  4. Step 4: Simplify right side
    117,477.21x = 10,336,575,491.80
  5. Step 5: Solve for x
    x = 10,336,575,491.80/117,477.21
  6. Step 6: Final answer
    x = 87,987.92

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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.