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Finding the Fourth Proportional to 78,813, 108,747.06 and 46,984.86

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Solution

The fourth proportional to 78,813, 108,747.06 and 46,984.86 is: 64,830.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,813 : 108,747.06 = 46,984.86 : x
  2. Step 2: Convert to fraction form
    78,813/108,747.06 = 46,984.86/x
  3. Step 3: Cross multiply
    78,813x = 108,747.06 × 46,984.86
  4. Step 4: Simplify right side
    78,813x = 5,109,465,389.51
  5. Step 5: Solve for x
    x = 5,109,465,389.51/78,813
  6. Step 6: Final answer
    x = 64,830.24

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