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Finding the Fourth Proportional to 292,544.55, 438,816.83 and 168,128.55

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Solution

The fourth proportional to 292,544.55, 438,816.83 and 168,128.55 is: 252,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,544.55 : 438,816.83 = 168,128.55 : x
  2. Step 2: Convert to fraction form
    292,544.55/438,816.83 = 168,128.55/x
  3. Step 3: Cross multiply
    292,544.55x = 438,816.83 × 168,128.55
  4. Step 4: Simplify right side
    292,544.55x = 73,777,636,502.85
  5. Step 5: Solve for x
    x = 73,777,636,502.85/292,544.55
  6. Step 6: Final answer
    x = 252,192.83

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1.5x scale

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.