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Finding the Fourth Proportional to 153,989.40, 230,546.70 and 153,989.40

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Solution

The fourth proportional to 153,989.40, 230,546.70 and 153,989.40 is: 230,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,989.40 : 230,546.70 = 153,989.40 : x
  2. Step 2: Convert to fraction form
    153,989.40/230,546.70 = 153,989.40/x
  3. Step 3: Cross multiply
    153,989.40x = 230,546.70 × 153,989.40
  4. Step 4: Simplify right side
    153,989.40x = 35,501,748,004.98
  5. Step 5: Solve for x
    x = 35,501,748,004.98/153,989.40
  6. Step 6: Final answer
    x = 230,546.70

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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.