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Finding the Fourth Proportional to 157,804.40, 217,771.47 and 89,825.76

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Solution

The fourth proportional to 157,804.40, 217,771.47 and 89,825.76 is: 123,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,804.40 : 217,771.47 = 89,825.76 : x
  2. Step 2: Convert to fraction form
    157,804.40/217,771.47 = 89,825.76/x
  3. Step 3: Cross multiply
    157,804.40x = 217,771.47 × 89,825.76
  4. Step 4: Simplify right side
    157,804.40x = 19,561,487,799.07
  5. Step 5: Solve for x
    x = 19,561,487,799.07/157,804.40
  6. Step 6: Final answer
    x = 123,960.34

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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.