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Finding the Fourth Proportional to 114,906.40, 172,456.80 and 51,823.60

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Solution

The fourth proportional to 114,906.40, 172,456.80 and 51,823.60 is: 77,779.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,906.40 : 172,456.80 = 51,823.60 : x
  2. Step 2: Convert to fraction form
    114,906.40/172,456.80 = 51,823.60/x
  3. Step 3: Cross multiply
    114,906.40x = 172,456.80 × 51,823.60
  4. Step 4: Simplify right side
    114,906.40x = 8,937,332,220.48
  5. Step 5: Solve for x
    x = 8,937,332,220.48/114,906.40
  6. Step 6: Final answer
    x = 77,779.24

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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.