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Finding the Fourth Proportional to 551,678.66, 827,516.54 and 146,870.88

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Solution

The fourth proportional to 551,678.66, 827,516.54 and 146,870.88 is: 220,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,678.66 : 827,516.54 = 146,870.88 : x
  2. Step 2: Convert to fraction form
    551,678.66/827,516.54 = 146,870.88/x
  3. Step 3: Cross multiply
    551,678.66x = 827,516.54 × 146,870.88
  4. Step 4: Simplify right side
    551,678.66x = 121,538,081,710.00
  5. Step 5: Solve for x
    x = 121,538,081,710.00/551,678.66
  6. Step 6: Final answer
    x = 220,305.93

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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.