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Finding the Fourth Proportional to 528,059.70, 791,895.15 and 173,085.30

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Solution

The fourth proportional to 528,059.70, 791,895.15 and 173,085.30 is: 259,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,059.70 : 791,895.15 = 173,085.30 : x
  2. Step 2: Convert to fraction form
    528,059.70/791,895.15 = 173,085.30/x
  3. Step 3: Cross multiply
    528,059.70x = 791,895.15 × 173,085.30
  4. Step 4: Simplify right side
    528,059.70x = 137,065,409,606.30
  5. Step 5: Solve for x
    x = 137,065,409,606.30/528,059.70
  6. Step 6: Final answer
    x = 259,564.23

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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.