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Finding the Fourth Proportional to 113,897.40, 170,845.20 and 29,657.40

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Solution

The fourth proportional to 113,897.40, 170,845.20 and 29,657.40 is: 44,485.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,897.40 : 170,845.20 = 29,657.40 : x
  2. Step 2: Convert to fraction form
    113,897.40/170,845.20 = 29,657.40/x
  3. Step 3: Cross multiply
    113,897.40x = 170,845.20 × 29,657.40
  4. Step 4: Simplify right side
    113,897.40x = 5,066,824,434.48
  5. Step 5: Solve for x
    x = 5,066,824,434.48/113,897.40
  6. Step 6: Final answer
    x = 44,485.87

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1.5x scale

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.