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Finding the Fourth Proportional to 452,412.08, 678,530.64 and 136,795.04

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Solution

The fourth proportional to 452,412.08, 678,530.64 and 136,795.04 is: 205,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,412.08 : 678,530.64 = 136,795.04 : x
  2. Step 2: Convert to fraction form
    452,412.08/678,530.64 = 136,795.04/x
  3. Step 3: Cross multiply
    452,412.08x = 678,530.64 × 136,795.04
  4. Step 4: Simplify right side
    452,412.08x = 92,819,626,040.03
  5. Step 5: Solve for x
    x = 92,819,626,040.03/452,412.08
  6. Step 6: Final answer
    x = 205,166.11

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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.