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Finding the Fourth Proportional to 76,302.80, 114,430.77 and 52,761.60

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Solution

The fourth proportional to 76,302.80, 114,430.77 and 52,761.60 is: 79,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,302.80 : 114,430.77 = 52,761.60 : x
  2. Step 2: Convert to fraction form
    76,302.80/114,430.77 = 52,761.60/x
  3. Step 3: Cross multiply
    76,302.80x = 114,430.77 × 52,761.60
  4. Step 4: Simplify right side
    76,302.80x = 6,037,550,514.43
  5. Step 5: Solve for x
    x = 6,037,550,514.43/76,302.80
  6. Step 6: Final answer
    x = 79,126.20

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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.