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Finding the Fourth Proportional to 528,062.20, 791,898.90 and 173,087.80

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Solution

The fourth proportional to 528,062.20, 791,898.90 and 173,087.80 is: 259,567.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,062.20 : 791,898.90 = 173,087.80 : x
  2. Step 2: Convert to fraction form
    528,062.20/791,898.90 = 173,087.80/x
  3. Step 3: Cross multiply
    528,062.20x = 791,898.90 × 173,087.80
  4. Step 4: Simplify right side
    528,062.20x = 137,068,038,423.42
  5. Step 5: Solve for x
    x = 137,068,038,423.42/528,062.20
  6. Step 6: Final answer
    x = 259,567.98

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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.