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Finding the Fourth Proportional to 118,022.95, 162,871.70 and 64,307.98

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Solution

The fourth proportional to 118,022.95, 162,871.70 and 64,307.98 is: 88,745.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,022.95 : 162,871.70 = 64,307.98 : x
  2. Step 2: Convert to fraction form
    118,022.95/162,871.70 = 64,307.98/x
  3. Step 3: Cross multiply
    118,022.95x = 162,871.70 × 64,307.98
  4. Step 4: Simplify right side
    118,022.95x = 10,473,949,908.22
  5. Step 5: Solve for x
    x = 10,473,949,908.22/118,022.95
  6. Step 6: Final answer
    x = 88,745.03

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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.