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Finding the Fourth Proportional to 144,005.95, 198,727.89 and 83,611.95

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Solution

The fourth proportional to 144,005.95, 198,727.89 and 83,611.95 is: 115,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,005.95 : 198,727.89 = 83,611.95 : x
  2. Step 2: Convert to fraction form
    144,005.95/198,727.89 = 83,611.95/x
  3. Step 3: Cross multiply
    144,005.95x = 198,727.89 × 83,611.95
  4. Step 4: Simplify right side
    144,005.95x = 16,616,026,402.29
  5. Step 5: Solve for x
    x = 16,616,026,402.29/144,005.95
  6. Step 6: Final answer
    x = 115,384.30

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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.