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Finding the Fourth Proportional to 144,335.80, 216,066.30 and 104,969.80

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Solution

The fourth proportional to 144,335.80, 216,066.30 and 104,969.80 is: 157,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,335.80 : 216,066.30 = 104,969.80 : x
  2. Step 2: Convert to fraction form
    144,335.80/216,066.30 = 104,969.80/x
  3. Step 3: Cross multiply
    144,335.80x = 216,066.30 × 104,969.80
  4. Step 4: Simplify right side
    144,335.80x = 22,680,436,297.74
  5. Step 5: Solve for x
    x = 22,680,436,297.74/144,335.80
  6. Step 6: Final answer
    x = 157,136.60

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1.5x scale

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.