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Finding the Fourth Proportional to 141,588.64, 212,412.12 and 118,377.28

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Solution

The fourth proportional to 141,588.64, 212,412.12 and 118,377.28 is: 177,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,588.64 : 212,412.12 = 118,377.28 : x
  2. Step 2: Convert to fraction form
    141,588.64/212,412.12 = 118,377.28/x
  3. Step 3: Cross multiply
    141,588.64x = 212,412.12 × 118,377.28
  4. Step 4: Simplify right side
    141,588.64x = 25,144,769,004.63
  5. Step 5: Solve for x
    x = 25,144,769,004.63/141,588.64
  6. Step 6: Final answer
    x = 177,590.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.