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Finding the Fourth Proportional to 371,776.42, 557,349.34 and 147,295.45

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Solution

The fourth proportional to 371,776.42, 557,349.34 and 147,295.45 is: 220,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,776.42 : 557,349.34 = 147,295.45 : x
  2. Step 2: Convert to fraction form
    371,776.42/557,349.34 = 147,295.45/x
  3. Step 3: Cross multiply
    371,776.42x = 557,349.34 × 147,295.45
  4. Step 4: Simplify right side
    371,776.42x = 82,095,021,842.50
  5. Step 5: Solve for x
    x = 82,095,021,842.50/371,776.42
  6. Step 6: Final answer
    x = 220,818.26

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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.