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Finding the Fourth Proportional to 187,663.51, 258,975.51 and 101,622.46

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Solution

The fourth proportional to 187,663.51, 258,975.51 and 101,622.46 is: 140,238.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,663.51 : 258,975.51 = 101,622.46 : x
  2. Step 2: Convert to fraction form
    187,663.51/258,975.51 = 101,622.46/x
  3. Step 3: Cross multiply
    187,663.51x = 258,975.51 × 101,622.46
  4. Step 4: Simplify right side
    187,663.51x = 26,317,728,405.95
  5. Step 5: Solve for x
    x = 26,317,728,405.95/187,663.51
  6. Step 6: Final answer
    x = 140,238.92

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1.5x scale

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.