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Finding the Fourth Proportional to 144,044.40, 198,701.40 and 84,416.88

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Solution

The fourth proportional to 144,044.40, 198,701.40 and 84,416.88 is: 116,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,044.40 : 198,701.40 = 84,416.88 : x
  2. Step 2: Convert to fraction form
    144,044.40/198,701.40 = 84,416.88/x
  3. Step 3: Cross multiply
    144,044.40x = 198,701.40 × 84,416.88
  4. Step 4: Simplify right side
    144,044.40x = 16,773,752,239.63
  5. Step 5: Solve for x
    x = 16,773,752,239.63/144,044.40
  6. Step 6: Final answer
    x = 116,448.49

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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.