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Finding the Fourth Proportional to 106,598.88, 147,060.09 and 68,289.93

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Solution

The fourth proportional to 106,598.88, 147,060.09 and 68,289.93 is: 94,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,598.88 : 147,060.09 = 68,289.93 : x
  2. Step 2: Convert to fraction form
    106,598.88/147,060.09 = 68,289.93/x
  3. Step 3: Cross multiply
    106,598.88x = 147,060.09 × 68,289.93
  4. Step 4: Simplify right side
    106,598.88x = 10,042,723,251.89
  5. Step 5: Solve for x
    x = 10,042,723,251.89/106,598.88
  6. Step 6: Final answer
    x = 94,210.40

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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.