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Finding the Fourth Proportional to 141,893.34, 195,814.17 and 78,233.46

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Solution

The fourth proportional to 141,893.34, 195,814.17 and 78,233.46 is: 107,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,893.34 : 195,814.17 = 78,233.46 : x
  2. Step 2: Convert to fraction form
    141,893.34/195,814.17 = 78,233.46/x
  3. Step 3: Cross multiply
    141,893.34x = 195,814.17 × 78,233.46
  4. Step 4: Simplify right side
    141,893.34x = 15,319,220,036.13
  5. Step 5: Solve for x
    x = 15,319,220,036.13/141,893.34
  6. Step 6: Final answer
    x = 107,962.93

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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.