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Finding the Fourth Proportional to 415,899.86, 623,854.71 and 146,034.77

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Solution

The fourth proportional to 415,899.86, 623,854.71 and 146,034.77 is: 219,053.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,899.86 : 623,854.71 = 146,034.77 : x
  2. Step 2: Convert to fraction form
    415,899.86/623,854.71 = 146,034.77/x
  3. Step 3: Cross multiply
    415,899.86x = 623,854.71 × 146,034.77
  4. Step 4: Simplify right side
    415,899.86x = 91,104,475,968.99
  5. Step 5: Solve for x
    x = 91,104,475,968.99/415,899.86
  6. Step 6: Final answer
    x = 219,053.88

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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.