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Finding the Fourth Proportional to 169,530.30, 254,295.45 and 98,574.30

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Solution

The fourth proportional to 169,530.30, 254,295.45 and 98,574.30 is: 147,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,530.30 : 254,295.45 = 98,574.30 : x
  2. Step 2: Convert to fraction form
    169,530.30/254,295.45 = 98,574.30/x
  3. Step 3: Cross multiply
    169,530.30x = 254,295.45 × 98,574.30
  4. Step 4: Simplify right side
    169,530.30x = 25,066,995,976.94
  5. Step 5: Solve for x
    x = 25,066,995,976.94/169,530.30
  6. Step 6: Final answer
    x = 147,861.45

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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.