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Finding the Fourth Proportional to 163,324.96, 225,386.76 and 91,703.32

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Solution

The fourth proportional to 163,324.96, 225,386.76 and 91,703.32 is: 126,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,324.96 : 225,386.76 = 91,703.32 : x
  2. Step 2: Convert to fraction form
    163,324.96/225,386.76 = 91,703.32/x
  3. Step 3: Cross multiply
    163,324.96x = 225,386.76 × 91,703.32
  4. Step 4: Simplify right side
    163,324.96x = 20,668,714,176.04
  5. Step 5: Solve for x
    x = 20,668,714,176.04/163,324.96
  6. Step 6: Final answer
    x = 126,549.64

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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.