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Finding the Fourth Proportional to 356,690.79, 535,118.13 and 120,027.15

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Solution

The fourth proportional to 356,690.79, 535,118.13 and 120,027.15 is: 180,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,690.79 : 535,118.13 = 120,027.15 : x
  2. Step 2: Convert to fraction form
    356,690.79/535,118.13 = 120,027.15/x
  3. Step 3: Cross multiply
    356,690.79x = 535,118.13 × 120,027.15
  4. Step 4: Simplify right side
    356,690.79x = 64,228,704,057.23
  5. Step 5: Solve for x
    x = 64,228,704,057.23/356,690.79
  6. Step 6: Final answer
    x = 180,068.30

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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.