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Finding the Fourth Proportional to 188,598.68, 260,258.94 and 103,710.68

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Solution

The fourth proportional to 188,598.68, 260,258.94 and 103,710.68 is: 143,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,598.68 : 260,258.94 = 103,710.68 : x
  2. Step 2: Convert to fraction form
    188,598.68/260,258.94 = 103,710.68/x
  3. Step 3: Cross multiply
    188,598.68x = 260,258.94 × 103,710.68
  4. Step 4: Simplify right side
    188,598.68x = 26,991,631,643.48
  5. Step 5: Solve for x
    x = 26,991,631,643.48/188,598.68
  6. Step 6: Final answer
    x = 143,116.76

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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.