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Finding the Fourth Proportional to 114,686.64, 158,281.56 and 72,244.44

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Solution

The fourth proportional to 114,686.64, 158,281.56 and 72,244.44 is: 99,706.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,686.64 : 158,281.56 = 72,244.44 : x
  2. Step 2: Convert to fraction form
    114,686.64/158,281.56 = 72,244.44/x
  3. Step 3: Cross multiply
    114,686.64x = 158,281.56 × 72,244.44
  4. Step 4: Simplify right side
    114,686.64x = 11,434,962,664.53
  5. Step 5: Solve for x
    x = 11,434,962,664.53/114,686.64
  6. Step 6: Final answer
    x = 99,706.14

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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.