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Finding the Fourth Proportional to 109,049.54, 150,488.21 and 61,303.07

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Solution

The fourth proportional to 109,049.54, 150,488.21 and 61,303.07 is: 84,598.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,049.54 : 150,488.21 = 61,303.07 : x
  2. Step 2: Convert to fraction form
    109,049.54/150,488.21 = 61,303.07/x
  3. Step 3: Cross multiply
    109,049.54x = 150,488.21 × 61,303.07
  4. Step 4: Simplify right side
    109,049.54x = 9,225,389,801.28
  5. Step 5: Solve for x
    x = 9,225,389,801.28/109,049.54
  6. Step 6: Final answer
    x = 84,598.16

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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.