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Finding the Fourth Proportional to 443,381.80, 665,334.94 and 163,095.72

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Solution

The fourth proportional to 443,381.80, 665,334.94 and 163,095.72 is: 244,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,381.80 : 665,334.94 = 163,095.72 : x
  2. Step 2: Convert to fraction form
    443,381.80/665,334.94 = 163,095.72/x
  3. Step 3: Cross multiply
    443,381.80x = 665,334.94 × 163,095.72
  4. Step 4: Simplify right side
    443,381.80x = 108,513,281,080.46
  5. Step 5: Solve for x
    x = 108,513,281,080.46/443,381.80
  6. Step 6: Final answer
    x = 244,740.04

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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.