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Finding the Fourth Proportional to 106,636.88, 147,158.40 and 58,890.02

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Solution

The fourth proportional to 106,636.88, 147,158.40 and 58,890.02 is: 81,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,636.88 : 147,158.40 = 58,890.02 : x
  2. Step 2: Convert to fraction form
    106,636.88/147,158.40 = 58,890.02/x
  3. Step 3: Cross multiply
    106,636.88x = 147,158.40 × 58,890.02
  4. Step 4: Simplify right side
    106,636.88x = 8,666,161,119.17
  5. Step 5: Solve for x
    x = 8,666,161,119.17/106,636.88
  6. Step 6: Final answer
    x = 81,267.95

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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.