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Finding the Fourth Proportional to 556,815.60, 835,130.52 and 157,365.72

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Solution

The fourth proportional to 556,815.60, 835,130.52 and 157,365.72 is: 236,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,815.60 : 835,130.52 = 157,365.72 : x
  2. Step 2: Convert to fraction form
    556,815.60/835,130.52 = 157,365.72/x
  3. Step 3: Cross multiply
    556,815.60x = 835,130.52 × 157,365.72
  4. Step 4: Simplify right side
    556,815.60x = 131,420,915,573.77
  5. Step 5: Solve for x
    x = 131,420,915,573.77/556,815.60
  6. Step 6: Final answer
    x = 236,022.33

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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.