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Finding the Fourth Proportional to 134,061.40, 201,119.10 and 39,291.40

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Solution

The fourth proportional to 134,061.40, 201,119.10 and 39,291.40 is: 58,945.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,061.40 : 201,119.10 = 39,291.40 : x
  2. Step 2: Convert to fraction form
    134,061.40/201,119.10 = 39,291.40/x
  3. Step 3: Cross multiply
    134,061.40x = 201,119.10 × 39,291.40
  4. Step 4: Simplify right side
    134,061.40x = 7,902,251,005.74
  5. Step 5: Solve for x
    x = 7,902,251,005.74/134,061.40
  6. Step 6: Final answer
    x = 58,945.01

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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.