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Finding the Fourth Proportional to 496,355.80, 744,533.70 and 141,365.20

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Solution

The fourth proportional to 496,355.80, 744,533.70 and 141,365.20 is: 212,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,355.80 : 744,533.70 = 141,365.20 : x
  2. Step 2: Convert to fraction form
    496,355.80/744,533.70 = 141,365.20/x
  3. Step 3: Cross multiply
    496,355.80x = 744,533.70 × 141,365.20
  4. Step 4: Simplify right side
    496,355.80x = 105,251,155,407.24
  5. Step 5: Solve for x
    x = 105,251,155,407.24/496,355.80
  6. Step 6: Final answer
    x = 212,047.80

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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.