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Finding the Fourth Proportional to 106,988.74, 147,643.93 and 59,241.97

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Solution

The fourth proportional to 106,988.74, 147,643.93 and 59,241.97 is: 81,753.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,988.74 : 147,643.93 = 59,241.97 : x
  2. Step 2: Convert to fraction form
    106,988.74/147,643.93 = 59,241.97/x
  3. Step 3: Cross multiply
    106,988.74x = 147,643.93 × 59,241.97
  4. Step 4: Simplify right side
    106,988.74x = 8,746,717,271.74
  5. Step 5: Solve for x
    x = 8,746,717,271.74/106,988.74
  6. Step 6: Final answer
    x = 81,753.62

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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.