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Finding the Fourth Proportional to 187,628.94, 258,927.58 and 101,587.90

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Solution

The fourth proportional to 187,628.94, 258,927.58 and 101,587.90 is: 140,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,628.94 : 258,927.58 = 101,587.90 : x
  2. Step 2: Convert to fraction form
    187,628.94/258,927.58 = 101,587.90/x
  3. Step 3: Cross multiply
    187,628.94x = 258,927.58 × 101,587.90
  4. Step 4: Simplify right side
    187,628.94x = 26,303,909,104.28
  5. Step 5: Solve for x
    x = 26,303,909,104.28/187,628.94
  6. Step 6: Final answer
    x = 140,191.11

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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.