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Finding the Fourth Proportional to 74,706.96, 112,068.64 and 37,276.45

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Solution

The fourth proportional to 74,706.96, 112,068.64 and 37,276.45 is: 55,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,706.96 : 112,068.64 = 37,276.45 : x
  2. Step 2: Convert to fraction form
    74,706.96/112,068.64 = 37,276.45/x
  3. Step 3: Cross multiply
    74,706.96x = 112,068.64 × 37,276.45
  4. Step 4: Simplify right side
    74,706.96x = 4,177,520,869.15
  5. Step 5: Solve for x
    x = 4,177,520,869.15/74,706.96
  6. Step 6: Final answer
    x = 55,918.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.