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Finding the Fourth Proportional to 255,580.70, 352,761.47 and 158,857.61

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Solution

The fourth proportional to 255,580.70, 352,761.47 and 158,857.61 is: 219,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,580.70 : 352,761.47 = 158,857.61 : x
  2. Step 2: Convert to fraction form
    255,580.70/352,761.47 = 158,857.61/x
  3. Step 3: Cross multiply
    255,580.70x = 352,761.47 × 158,857.61
  4. Step 4: Simplify right side
    255,580.70x = 56,038,841,466.19
  5. Step 5: Solve for x
    x = 56,038,841,466.19/255,580.70
  6. Step 6: Final answer
    x = 219,260.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.