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Finding the Fourth Proportional to 243,833.83, 336,491.90 and 136,403.80

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Solution

The fourth proportional to 243,833.83, 336,491.90 and 136,403.80 is: 188,237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,833.83 : 336,491.90 = 136,403.80 : x
  2. Step 2: Convert to fraction form
    243,833.83/336,491.90 = 136,403.80/x
  3. Step 3: Cross multiply
    243,833.83x = 336,491.90 × 136,403.80
  4. Step 4: Simplify right side
    243,833.83x = 45,898,773,829.22
  5. Step 5: Solve for x
    x = 45,898,773,829.22/243,833.83
  6. Step 6: Final answer
    x = 188,237.92

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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.