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Finding the Fourth Proportional to 572,603.60, 858,686.70 and 173,111.60

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Solution

The fourth proportional to 572,603.60, 858,686.70 and 173,111.60 is: 259,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,603.60 : 858,686.70 = 173,111.60 : x
  2. Step 2: Convert to fraction form
    572,603.60/858,686.70 = 173,111.60/x
  3. Step 3: Cross multiply
    572,603.60x = 858,686.70 × 173,111.60
  4. Step 4: Simplify right side
    572,603.60x = 148,648,628,535.72
  5. Step 5: Solve for x
    x = 148,648,628,535.72/572,603.60
  6. Step 6: Final answer
    x = 259,601.28

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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.