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Finding the Fourth Proportional to 572,258.22, 858,347.60 and 172,901.09

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Solution

The fourth proportional to 572,258.22, 858,347.60 and 172,901.09 is: 259,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,258.22 : 858,347.60 = 172,901.09 : x
  2. Step 2: Convert to fraction form
    572,258.22/858,347.60 = 172,901.09/x
  3. Step 3: Cross multiply
    572,258.22x = 858,347.60 × 172,901.09
  4. Step 4: Simplify right side
    572,258.22x = 148,409,230,482.64
  5. Step 5: Solve for x
    x = 148,409,230,482.64/572,258.22
  6. Step 6: Final answer
    x = 259,339.62

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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.