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Finding the Fourth Proportional to 188,503.40, 260,135.55 and 103,625.93

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Solution

The fourth proportional to 188,503.40, 260,135.55 and 103,625.93 is: 143,004.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,503.40 : 260,135.55 = 103,625.93 : x
  2. Step 2: Convert to fraction form
    188,503.40/260,135.55 = 103,625.93/x
  3. Step 3: Cross multiply
    188,503.40x = 260,135.55 × 103,625.93
  4. Step 4: Simplify right side
    188,503.40x = 26,956,788,294.81
  5. Step 5: Solve for x
    x = 26,956,788,294.81/188,503.40
  6. Step 6: Final answer
    x = 143,004.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.