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Finding the Fourth Proportional to 157,562.84, 217,437.39 and 85,944.40

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Solution

The fourth proportional to 157,562.84, 217,437.39 and 85,944.40 is: 118,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,562.84 : 217,437.39 = 85,944.40 : x
  2. Step 2: Convert to fraction form
    157,562.84/217,437.39 = 85,944.40/x
  3. Step 3: Cross multiply
    157,562.84x = 217,437.39 × 85,944.40
  4. Step 4: Simplify right side
    157,562.84x = 18,687,526,021.12
  5. Step 5: Solve for x
    x = 18,687,526,021.12/157,562.84
  6. Step 6: Final answer
    x = 118,603.64

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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.