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Finding the Fourth Proportional to 189,291.54, 260,690.80 and 185,158.10

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Solution

The fourth proportional to 189,291.54, 260,690.80 and 185,158.10 is: 254,998.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,291.54 : 260,690.80 = 185,158.10 : x
  2. Step 2: Convert to fraction form
    189,291.54/260,690.80 = 185,158.10/x
  3. Step 3: Cross multiply
    189,291.54x = 260,690.80 × 185,158.10
  4. Step 4: Simplify right side
    189,291.54x = 48,269,013,215.48
  5. Step 5: Solve for x
    x = 48,269,013,215.48/189,291.54
  6. Step 6: Final answer
    x = 254,998.26

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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.