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Finding the Fourth Proportional to 79,317.63, 109,300.19 and 56,592.57

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Solution

The fourth proportional to 79,317.63, 109,300.19 and 56,592.57 is: 77,984.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,317.63 : 109,300.19 = 56,592.57 : x
  2. Step 2: Convert to fraction form
    79,317.63/109,300.19 = 56,592.57/x
  3. Step 3: Cross multiply
    79,317.63x = 109,300.19 × 56,592.57
  4. Step 4: Simplify right side
    79,317.63x = 6,185,578,780.50
  5. Step 5: Solve for x
    x = 6,185,578,780.50/79,317.63
  6. Step 6: Final answer
    x = 77,984.92

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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.