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Finding the Fourth Proportional to 104,451.63, 144,210.22 and 71,800.34

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Solution

The fourth proportional to 104,451.63, 144,210.22 and 71,800.34 is: 99,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,451.63 : 144,210.22 = 71,800.34 : x
  2. Step 2: Convert to fraction form
    104,451.63/144,210.22 = 71,800.34/x
  3. Step 3: Cross multiply
    104,451.63x = 144,210.22 × 71,800.34
  4. Step 4: Simplify right side
    104,451.63x = 10,354,342,827.47
  5. Step 5: Solve for x
    x = 10,354,342,827.47/104,451.63
  6. Step 6: Final answer
    x = 99,130.50

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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.