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Finding the Fourth Proportional to 163,602.21, 245,408.81 and 45,263.64

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Solution

The fourth proportional to 163,602.21, 245,408.81 and 45,263.64 is: 67,896.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,602.21 : 245,408.81 = 45,263.64 : x
  2. Step 2: Convert to fraction form
    163,602.21/245,408.81 = 45,263.64/x
  3. Step 3: Cross multiply
    163,602.21x = 245,408.81 × 45,263.64
  4. Step 4: Simplify right side
    163,602.21x = 11,108,095,802.35
  5. Step 5: Solve for x
    x = 11,108,095,802.35/163,602.21
  6. Step 6: Final answer
    x = 67,896.98

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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.