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Finding the Fourth Proportional to 528,063.72, 791,779.25 and 168,079.07

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Solution

The fourth proportional to 528,063.72, 791,779.25 and 168,079.07 is: 252,017.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,063.72 : 791,779.25 = 168,079.07 : x
  2. Step 2: Convert to fraction form
    528,063.72/791,779.25 = 168,079.07/x
  3. Step 3: Cross multiply
    528,063.72x = 791,779.25 × 168,079.07
  4. Step 4: Simplify right side
    528,063.72x = 133,081,515,186.01
  5. Step 5: Solve for x
    x = 133,081,515,186.01/528,063.72
  6. Step 6: Final answer
    x = 252,017.91

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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.