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Finding the Fourth Proportional to 359,754.60, 539,486.10 and 122,975.40

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Solution

The fourth proportional to 359,754.60, 539,486.10 and 122,975.40 is: 184,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,754.60 : 539,486.10 = 122,975.40 : x
  2. Step 2: Convert to fraction form
    359,754.60/539,486.10 = 122,975.40/x
  3. Step 3: Cross multiply
    359,754.60x = 539,486.10 × 122,975.40
  4. Step 4: Simplify right side
    359,754.60x = 66,343,518,941.94
  5. Step 5: Solve for x
    x = 66,343,518,941.94/359,754.60
  6. Step 6: Final answer
    x = 184,413.26

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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.