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Finding the Fourth Proportional to 359,391.83, 539,152.29 and 122,679.16

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Solution

The fourth proportional to 359,391.83, 539,152.29 and 122,679.16 is: 184,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,391.83 : 539,152.29 = 122,679.16 : x
  2. Step 2: Convert to fraction form
    359,391.83/539,152.29 = 122,679.16/x
  3. Step 3: Cross multiply
    359,391.83x = 539,152.29 × 122,679.16
  4. Step 4: Simplify right side
    359,391.83x = 66,142,748,701.40
  5. Step 5: Solve for x
    x = 66,142,748,701.40/359,391.83
  6. Step 6: Final answer
    x = 184,040.77

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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.