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Finding the Fourth Proportional to 284,365.96, 426,628.65 and 124,455.83

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Solution

The fourth proportional to 284,365.96, 426,628.65 and 124,455.83 is: 186,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,365.96 : 426,628.65 = 124,455.83 : x
  2. Step 2: Convert to fraction form
    284,365.96/426,628.65 = 124,455.83/x
  3. Step 3: Cross multiply
    284,365.96x = 426,628.65 × 124,455.83
  4. Step 4: Simplify right side
    284,365.96x = 53,096,421,071.10
  5. Step 5: Solve for x
    x = 53,096,421,071.10/284,365.96
  6. Step 6: Final answer
    x = 186,718.63

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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.