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Finding the Fourth Proportional to 59,323.80, 88,985.70 and 31,330.20

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Solution

The fourth proportional to 59,323.80, 88,985.70 and 31,330.20 is: 46,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,323.80 : 88,985.70 = 31,330.20 : x
  2. Step 2: Convert to fraction form
    59,323.80/88,985.70 = 31,330.20/x
  3. Step 3: Cross multiply
    59,323.80x = 88,985.70 × 31,330.20
  4. Step 4: Simplify right side
    59,323.80x = 2,787,939,778.14
  5. Step 5: Solve for x
    x = 2,787,939,778.14/59,323.80
  6. Step 6: Final answer
    x = 46,995.30

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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.