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Finding the Fourth Proportional to 169,700.60, 254,550.90 and 99,543.80

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Solution

The fourth proportional to 169,700.60, 254,550.90 and 99,543.80 is: 149,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,700.60 : 254,550.90 = 99,543.80 : x
  2. Step 2: Convert to fraction form
    169,700.60/254,550.90 = 99,543.80/x
  3. Step 3: Cross multiply
    169,700.60x = 254,550.90 × 99,543.80
  4. Step 4: Simplify right side
    169,700.60x = 25,338,963,879.42
  5. Step 5: Solve for x
    x = 25,338,963,879.42/169,700.60
  6. Step 6: Final answer
    x = 149,315.70

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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.