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Finding the Fourth Proportional to 536,956.40, 805,379.12 and 181,961.20

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Solution

The fourth proportional to 536,956.40, 805,379.12 and 181,961.20 is: 272,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,956.40 : 805,379.12 = 181,961.20 : x
  2. Step 2: Convert to fraction form
    536,956.40/805,379.12 = 181,961.20/x
  3. Step 3: Cross multiply
    536,956.40x = 805,379.12 × 181,961.20
  4. Step 4: Simplify right side
    536,956.40x = 146,547,751,130.14
  5. Step 5: Solve for x
    x = 146,547,751,130.14/536,956.40
  6. Step 6: Final answer
    x = 272,923.00

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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.