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Finding the Fourth Proportional to 104,567.36, 144,303.56 and 56,821.12

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Solution

The fourth proportional to 104,567.36, 144,303.56 and 56,821.12 is: 78,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,567.36 : 144,303.56 = 56,821.12 : x
  2. Step 2: Convert to fraction form
    104,567.36/144,303.56 = 56,821.12/x
  3. Step 3: Cross multiply
    104,567.36x = 144,303.56 × 56,821.12
  4. Step 4: Simplify right side
    104,567.36x = 8,199,489,899.19
  5. Step 5: Solve for x
    x = 8,199,489,899.19/104,567.36
  6. Step 6: Final answer
    x = 78,413.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.