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Finding the Fourth Proportional to 359,059.15, 538,667.70 and 106,359.40

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Solution

The fourth proportional to 359,059.15, 538,667.70 and 106,359.40 is: 159,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,059.15 : 538,667.70 = 106,359.40 : x
  2. Step 2: Convert to fraction form
    359,059.15/538,667.70 = 106,359.40/x
  3. Step 3: Cross multiply
    359,059.15x = 538,667.70 × 106,359.40
  4. Step 4: Simplify right side
    359,059.15x = 57,292,373,371.38
  5. Step 5: Solve for x
    x = 57,292,373,371.38/359,059.15
  6. Step 6: Final answer
    x = 159,562.49

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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.