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Finding the Fourth Proportional to 117,012.80, 175,519.20 and 97,329.80

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Solution

The fourth proportional to 117,012.80, 175,519.20 and 97,329.80 is: 145,994.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,012.80 : 175,519.20 = 97,329.80 : x
  2. Step 2: Convert to fraction form
    117,012.80/175,519.20 = 97,329.80/x
  3. Step 3: Cross multiply
    117,012.80x = 175,519.20 × 97,329.80
  4. Step 4: Simplify right side
    117,012.80x = 17,083,248,632.16
  5. Step 5: Solve for x
    x = 17,083,248,632.16/117,012.80
  6. Step 6: Final answer
    x = 145,994.70

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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.