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Finding the Fourth Proportional to 145,866.90, 218,800.26 and 112,635.48

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Solution

The fourth proportional to 145,866.90, 218,800.26 and 112,635.48 is: 168,953.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,866.90 : 218,800.26 = 112,635.48 : x
  2. Step 2: Convert to fraction form
    145,866.90/218,800.26 = 112,635.48/x
  3. Step 3: Cross multiply
    145,866.90x = 218,800.26 × 112,635.48
  4. Step 4: Simplify right side
    145,866.90x = 24,644,672,309.22
  5. Step 5: Solve for x
    x = 24,644,672,309.22/145,866.90
  6. Step 6: Final answer
    x = 168,953.15

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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.