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Finding the Fourth Proportional to 184,355.64, 254,359.80 and 103,778.40

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Solution

The fourth proportional to 184,355.64, 254,359.80 and 103,778.40 is: 143,185.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,355.64 : 254,359.80 = 103,778.40 : x
  2. Step 2: Convert to fraction form
    184,355.64/254,359.80 = 103,778.40/x
  3. Step 3: Cross multiply
    184,355.64x = 254,359.80 × 103,778.40
  4. Step 4: Simplify right side
    184,355.64x = 26,397,053,068.32
  5. Step 5: Solve for x
    x = 26,397,053,068.32/184,355.64
  6. Step 6: Final answer
    x = 143,185.49

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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.