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Finding the Fourth Proportional to 108,981.99, 163,472.72 and 30,095.98

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Solution

The fourth proportional to 108,981.99, 163,472.72 and 30,095.98 is: 45,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,981.99 : 163,472.72 = 30,095.98 : x
  2. Step 2: Convert to fraction form
    108,981.99/163,472.72 = 30,095.98/x
  3. Step 3: Cross multiply
    108,981.99x = 163,472.72 × 30,095.98
  4. Step 4: Simplify right side
    108,981.99x = 4,919,871,152.50
  5. Step 5: Solve for x
    x = 4,919,871,152.50/108,981.99
  6. Step 6: Final answer
    x = 45,143.89

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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.