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Finding the Fourth Proportional to 183,929.55, 253,830.29 and 103,356.83

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Solution

The fourth proportional to 183,929.55, 253,830.29 and 103,356.83 is: 142,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,929.55 : 253,830.29 = 103,356.83 : x
  2. Step 2: Convert to fraction form
    183,929.55/253,830.29 = 103,356.83/x
  3. Step 3: Cross multiply
    183,929.55x = 253,830.29 × 103,356.83
  4. Step 4: Simplify right side
    183,929.55x = 26,235,092,346.45
  5. Step 5: Solve for x
    x = 26,235,092,346.45/183,929.55
  6. Step 6: Final answer
    x = 142,636.64

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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.