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Finding the Fourth Proportional to 75,063.75, 112,628.31 and 47,048.01

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Solution

The fourth proportional to 75,063.75, 112,628.31 and 47,048.01 is: 70,592.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.75 : 112,628.31 = 47,048.01 : x
  2. Step 2: Convert to fraction form
    75,063.75/112,628.31 = 47,048.01/x
  3. Step 3: Cross multiply
    75,063.75x = 112,628.31 × 47,048.01
  4. Step 4: Simplify right side
    75,063.75x = 5,298,937,855.16
  5. Step 5: Solve for x
    x = 5,298,937,855.16/75,063.75
  6. Step 6: Final answer
    x = 70,592.50

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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.