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Finding the Fourth Proportional to 185,942, 279,924.80 and 169,408.28

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Solution

The fourth proportional to 185,942, 279,924.80 and 169,408.28 is: 255,034.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,942 : 279,924.80 = 169,408.28 : x
  2. Step 2: Convert to fraction form
    185,942/279,924.80 = 169,408.28/x
  3. Step 3: Cross multiply
    185,942x = 279,924.80 × 169,408.28
  4. Step 4: Simplify right side
    185,942x = 47,421,578,897.34
  5. Step 5: Solve for x
    x = 47,421,578,897.34/185,942
  6. Step 6: Final answer
    x = 255,034.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.