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Finding the Fourth Proportional to 147,859.38, 204,041.08 and 93,440.64

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Solution

The fourth proportional to 147,859.38, 204,041.08 and 93,440.64 is: 128,945.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,859.38 : 204,041.08 = 93,440.64 : x
  2. Step 2: Convert to fraction form
    147,859.38/204,041.08 = 93,440.64/x
  3. Step 3: Cross multiply
    147,859.38x = 204,041.08 × 93,440.64
  4. Step 4: Simplify right side
    147,859.38x = 19,065,729,101.49
  5. Step 5: Solve for x
    x = 19,065,729,101.49/147,859.38
  6. Step 6: Final answer
    x = 128,945.01

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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.