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Finding the Fourth Proportional to 78,543.75, 108,397.59 and 44,563.30

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Solution

The fourth proportional to 78,543.75, 108,397.59 and 44,563.30 is: 61,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,543.75 : 108,397.59 = 44,563.30 : x
  2. Step 2: Convert to fraction form
    78,543.75/108,397.59 = 44,563.30/x
  3. Step 3: Cross multiply
    78,543.75x = 108,397.59 × 44,563.30
  4. Step 4: Simplify right side
    78,543.75x = 4,830,554,322.45
  5. Step 5: Solve for x
    x = 4,830,554,322.45/78,543.75
  6. Step 6: Final answer
    x = 61,501.45

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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.