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Finding the Fourth Proportional to 163,513.68, 225,650.88 and 99,842.64

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Solution

The fourth proportional to 163,513.68, 225,650.88 and 99,842.64 is: 137,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,513.68 : 225,650.88 = 99,842.64 : x
  2. Step 2: Convert to fraction form
    163,513.68/225,650.88 = 99,842.64/x
  3. Step 3: Cross multiply
    163,513.68x = 225,650.88 × 99,842.64
  4. Step 4: Simplify right side
    163,513.68x = 22,529,579,577.52
  5. Step 5: Solve for x
    x = 22,529,579,577.52/163,513.68
  6. Step 6: Final answer
    x = 137,784.07

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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.