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Finding the Fourth Proportional to 485,006.16, 727,509.33 and 148,048.68

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Solution

The fourth proportional to 485,006.16, 727,509.33 and 148,048.68 is: 222,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,006.16 : 727,509.33 = 148,048.68 : x
  2. Step 2: Convert to fraction form
    485,006.16/727,509.33 = 148,048.68/x
  3. Step 3: Cross multiply
    485,006.16x = 727,509.33 × 148,048.68
  4. Step 4: Simplify right side
    485,006.16x = 107,706,795,994.18
  5. Step 5: Solve for x
    x = 107,706,795,994.18/485,006.16
  6. Step 6: Final answer
    x = 222,073.05

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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.