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Finding the Fourth Proportional to 154,598.24, 213,339.44 and 87,530.24

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Solution

The fourth proportional to 154,598.24, 213,339.44 and 87,530.24 is: 120,788.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,598.24 : 213,339.44 = 87,530.24 : x
  2. Step 2: Convert to fraction form
    154,598.24/213,339.44 = 87,530.24/x
  3. Step 3: Cross multiply
    154,598.24x = 213,339.44 × 87,530.24
  4. Step 4: Simplify right side
    154,598.24x = 18,673,652,384.67
  5. Step 5: Solve for x
    x = 18,673,652,384.67/154,598.24
  6. Step 6: Final answer
    x = 120,788.26

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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.