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Finding the Fourth Proportional to 440,988.90, 661,480.88 and 160,506.16

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Solution

The fourth proportional to 440,988.90, 661,480.88 and 160,506.16 is: 240,758.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,988.90 : 661,480.88 = 160,506.16 : x
  2. Step 2: Convert to fraction form
    440,988.90/661,480.88 = 160,506.16/x
  3. Step 3: Cross multiply
    440,988.90x = 661,480.88 × 160,506.16
  4. Step 4: Simplify right side
    440,988.90x = 106,171,755,962.22
  5. Step 5: Solve for x
    x = 106,171,755,962.22/440,988.90
  6. Step 6: Final answer
    x = 240,758.34

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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.