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Finding the Fourth Proportional to 163,049.48, 225,010.61 and 98,509.74

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Solution

The fourth proportional to 163,049.48, 225,010.61 and 98,509.74 is: 135,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,049.48 : 225,010.61 = 98,509.74 : x
  2. Step 2: Convert to fraction form
    163,049.48/225,010.61 = 98,509.74/x
  3. Step 3: Cross multiply
    163,049.48x = 225,010.61 × 98,509.74
  4. Step 4: Simplify right side
    163,049.48x = 22,165,736,688.34
  5. Step 5: Solve for x
    x = 22,165,736,688.34/163,049.48
  6. Step 6: Final answer
    x = 135,944.85

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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.