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Finding the Fourth Proportional to 106,555.68, 147,045.51 and 58,807.98

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Solution

The fourth proportional to 106,555.68, 147,045.51 and 58,807.98 is: 81,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,555.68 : 147,045.51 = 58,807.98 : x
  2. Step 2: Convert to fraction form
    106,555.68/147,045.51 = 58,807.98/x
  3. Step 3: Cross multiply
    106,555.68x = 147,045.51 × 58,807.98
  4. Step 4: Simplify right side
    106,555.68x = 8,647,449,411.17
  5. Step 5: Solve for x
    x = 8,647,449,411.17/106,555.68
  6. Step 6: Final answer
    x = 81,154.28

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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.