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Finding the Fourth Proportional to 187,566.78, 258,674.50 and 136,698.07

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Solution

The fourth proportional to 187,566.78, 258,674.50 and 136,698.07 is: 188,521.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,566.78 : 258,674.50 = 136,698.07 : x
  2. Step 2: Convert to fraction form
    187,566.78/258,674.50 = 136,698.07/x
  3. Step 3: Cross multiply
    187,566.78x = 258,674.50 × 136,698.07
  4. Step 4: Simplify right side
    187,566.78x = 35,360,304,908.22
  5. Step 5: Solve for x
    x = 35,360,304,908.22/187,566.78
  6. Step 6: Final answer
    x = 188,521.15

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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.