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Finding the Fourth Proportional to 186,879.30, 257,893.86 and 102,001.80

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Solution

The fourth proportional to 186,879.30, 257,893.86 and 102,001.80 is: 140,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,879.30 : 257,893.86 = 102,001.80 : x
  2. Step 2: Convert to fraction form
    186,879.30/257,893.86 = 102,001.80/x
  3. Step 3: Cross multiply
    186,879.30x = 257,893.86 × 102,001.80
  4. Step 4: Simplify right side
    186,879.30x = 26,305,637,928.95
  5. Step 5: Solve for x
    x = 26,305,637,928.95/186,879.30
  6. Step 6: Final answer
    x = 140,762.72

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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.