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Finding the Fourth Proportional to 163,712.93, 245,568.63 and 45,383.88

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Solution

The fourth proportional to 163,712.93, 245,568.63 and 45,383.88 is: 68,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,712.93 : 245,568.63 = 45,383.88 : x
  2. Step 2: Convert to fraction form
    163,712.93/245,568.63 = 45,383.88/x
  3. Step 3: Cross multiply
    163,712.93x = 245,568.63 × 45,383.88
  4. Step 4: Simplify right side
    163,712.93x = 11,144,856,484.99
  5. Step 5: Solve for x
    x = 11,144,856,484.99/163,712.93
  6. Step 6: Final answer
    x = 68,075.60

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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.