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Finding the Fourth Proportional to 243,663.33, 336,153.53 and 189,854.93

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Solution

The fourth proportional to 243,663.33, 336,153.53 and 189,854.93 is: 261,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,663.33 : 336,153.53 = 189,854.93 : x
  2. Step 2: Convert to fraction form
    243,663.33/336,153.53 = 189,854.93/x
  3. Step 3: Cross multiply
    243,663.33x = 336,153.53 × 189,854.93
  4. Step 4: Simplify right side
    243,663.33x = 63,820,404,907.40
  5. Step 5: Solve for x
    x = 63,820,404,907.40/243,663.33
  6. Step 6: Final answer
    x = 261,920.43

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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.