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Finding the Fourth Proportional to 528,068.30, 792,102.45 and 154,042.70

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Solution

The fourth proportional to 528,068.30, 792,102.45 and 154,042.70 is: 231,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,068.30 : 792,102.45 = 154,042.70 : x
  2. Step 2: Convert to fraction form
    528,068.30/792,102.45 = 154,042.70/x
  3. Step 3: Cross multiply
    528,068.30x = 792,102.45 × 154,042.70
  4. Step 4: Simplify right side
    528,068.30x = 122,017,600,074.62
  5. Step 5: Solve for x
    x = 122,017,600,074.62/528,068.30
  6. Step 6: Final answer
    x = 231,064.05

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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.