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Finding the Fourth Proportional to 528,716.00, 793,089.54 and 129,356.80

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Solution

The fourth proportional to 528,716.00, 793,089.54 and 129,356.80 is: 194,039.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,716.00 : 793,089.54 = 129,356.80 : x
  2. Step 2: Convert to fraction form
    528,716.00/793,089.54 = 129,356.80/x
  3. Step 3: Cross multiply
    528,716.00x = 793,089.54 × 129,356.80
  4. Step 4: Simplify right side
    528,716.00x = 102,591,523,025.15
  5. Step 5: Solve for x
    x = 102,591,523,025.15/528,716.00
  6. Step 6: Final answer
    x = 194,039.00

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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.