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Finding the Fourth Proportional to 483,652.32, 725,477.61 and 128,666.34

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Solution

The fourth proportional to 483,652.32, 725,477.61 and 128,666.34 is: 192,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,652.32 : 725,477.61 = 128,666.34 : x
  2. Step 2: Convert to fraction form
    483,652.32/725,477.61 = 128,666.34/x
  3. Step 3: Cross multiply
    483,652.32x = 725,477.61 × 128,666.34
  4. Step 4: Simplify right side
    483,652.32x = 93,344,548,830.65
  5. Step 5: Solve for x
    x = 93,344,548,830.65/483,652.32
  6. Step 6: Final answer
    x = 192,999.28

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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.