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Finding the Fourth Proportional to 117,498.21, 162,466.47 and 115,599.03

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Solution

The fourth proportional to 117,498.21, 162,466.47 and 115,599.03 is: 159,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,498.21 : 162,466.47 = 115,599.03 : x
  2. Step 2: Convert to fraction form
    117,498.21/162,466.47 = 115,599.03/x
  3. Step 3: Cross multiply
    117,498.21x = 162,466.47 × 115,599.03
  4. Step 4: Simplify right side
    117,498.21x = 18,780,966,339.52
  5. Step 5: Solve for x
    x = 18,780,966,339.52/117,498.21
  6. Step 6: Final answer
    x = 159,840.45

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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.