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Finding the Fourth Proportional to 46,675.20, 70,012.80 and 43,030.20

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Solution

The fourth proportional to 46,675.20, 70,012.80 and 43,030.20 is: 64,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,675.20 : 70,012.80 = 43,030.20 : x
  2. Step 2: Convert to fraction form
    46,675.20/70,012.80 = 43,030.20/x
  3. Step 3: Cross multiply
    46,675.20x = 70,012.80 × 43,030.20
  4. Step 4: Simplify right side
    46,675.20x = 3,012,664,786.56
  5. Step 5: Solve for x
    x = 3,012,664,786.56/46,675.20
  6. Step 6: Final answer
    x = 64,545.30

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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.