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Finding the Fourth Proportional to 187,590.42, 258,874.88 and 102,707.51

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Solution

The fourth proportional to 187,590.42, 258,874.88 and 102,707.51 is: 141,736.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,590.42 : 258,874.88 = 102,707.51 : x
  2. Step 2: Convert to fraction form
    187,590.42/258,874.88 = 102,707.51/x
  3. Step 3: Cross multiply
    187,590.42x = 258,874.88 × 102,707.51
  4. Step 4: Simplify right side
    187,590.42x = 26,588,392,518.44
  5. Step 5: Solve for x
    x = 26,588,392,518.44/187,590.42
  6. Step 6: Final answer
    x = 141,736.41

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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.