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Finding the Fourth Proportional to 292,887.40, 439,413.78 and 82,527.16

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Solution

The fourth proportional to 292,887.40, 439,413.78 and 82,527.16 is: 123,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,887.40 : 439,413.78 = 82,527.16 : x
  2. Step 2: Convert to fraction form
    292,887.40/439,413.78 = 82,527.16/x
  3. Step 3: Cross multiply
    292,887.40x = 439,413.78 × 82,527.16
  4. Step 4: Simplify right side
    292,887.40x = 36,263,571,328.26
  5. Step 5: Solve for x
    x = 36,263,571,328.26/292,887.40
  6. Step 6: Final answer
    x = 123,814.04

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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.