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Finding the Fourth Proportional to 243,652.78, 336,105.85 and 141,666.97

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Solution

The fourth proportional to 243,652.78, 336,105.85 and 141,666.97 is: 195,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,652.78 : 336,105.85 = 141,666.97 : x
  2. Step 2: Convert to fraction form
    243,652.78/336,105.85 = 141,666.97/x
  3. Step 3: Cross multiply
    243,652.78x = 336,105.85 × 141,666.97
  4. Step 4: Simplify right side
    243,652.78x = 47,615,095,726.43
  5. Step 5: Solve for x
    x = 47,615,095,726.43/243,652.78
  6. Step 6: Final answer
    x = 195,421.93

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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.