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Finding the Fourth Proportional to 113,364.84, 156,443.64 and 63,063.84

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Solution

The fourth proportional to 113,364.84, 156,443.64 and 63,063.84 is: 87,028.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,364.84 : 156,443.64 = 63,063.84 : x
  2. Step 2: Convert to fraction form
    113,364.84/156,443.64 = 63,063.84/x
  3. Step 3: Cross multiply
    113,364.84x = 156,443.64 × 63,063.84
  4. Step 4: Simplify right side
    113,364.84x = 9,865,937,032.15
  5. Step 5: Solve for x
    x = 9,865,937,032.15/113,364.84
  6. Step 6: Final answer
    x = 87,028.19

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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.