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Finding the Fourth Proportional to 187,602.50, 258,892.36 and 107,029.20

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Solution

The fourth proportional to 187,602.50, 258,892.36 and 107,029.20 is: 147,700.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,602.50 : 258,892.36 = 107,029.20 : x
  2. Step 2: Convert to fraction form
    187,602.50/258,892.36 = 107,029.20/x
  3. Step 3: Cross multiply
    187,602.50x = 258,892.36 × 107,029.20
  4. Step 4: Simplify right side
    187,602.50x = 27,709,042,176.91
  5. Step 5: Solve for x
    x = 27,709,042,176.91/187,602.50
  6. Step 6: Final answer
    x = 147,700.82

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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.