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Finding the Fourth Proportional to 104,160.45, 143,741.43 and 56,413.92

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Solution

The fourth proportional to 104,160.45, 143,741.43 and 56,413.92 is: 77,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,160.45 : 143,741.43 = 56,413.92 : x
  2. Step 2: Convert to fraction form
    104,160.45/143,741.43 = 56,413.92/x
  3. Step 3: Cross multiply
    104,160.45x = 143,741.43 × 56,413.92
  4. Step 4: Simplify right side
    104,160.45x = 8,109,017,532.71
  5. Step 5: Solve for x
    x = 8,109,017,532.71/104,160.45
  6. Step 6: Final answer
    x = 77,851.21

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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.