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Finding the Fourth Proportional to 496,776.60, 744,940.80 and 141,706.08

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Solution

The fourth proportional to 496,776.60, 744,940.80 and 141,706.08 is: 212,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,776.60 : 744,940.80 = 141,706.08 : x
  2. Step 2: Convert to fraction form
    496,776.60/744,940.80 = 141,706.08/x
  3. Step 3: Cross multiply
    496,776.60x = 744,940.80 × 141,706.08
  4. Step 4: Simplify right side
    496,776.60x = 105,562,640,600.06
  5. Step 5: Solve for x
    x = 105,562,640,600.06/496,776.60
  6. Step 6: Final answer
    x = 212,495.20

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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.