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Finding the Fourth Proportional to 163,210.62, 225,246.84 and 91,590.93

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Solution

The fourth proportional to 163,210.62, 225,246.84 and 91,590.93 is: 126,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,210.62 : 225,246.84 = 91,590.93 : x
  2. Step 2: Convert to fraction form
    163,210.62/225,246.84 = 91,590.93/x
  3. Step 3: Cross multiply
    163,210.62x = 225,246.84 × 91,590.93
  4. Step 4: Simplify right side
    163,210.62x = 20,630,567,555.16
  5. Step 5: Solve for x
    x = 20,630,567,555.16/163,210.62
  6. Step 6: Final answer
    x = 126,404.57

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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.