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Finding the Fourth Proportional to 78,250.77, 107,988.51 and 44,258.59

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Solution

The fourth proportional to 78,250.77, 107,988.51 and 44,258.59 is: 61,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,250.77 : 107,988.51 = 44,258.59 : x
  2. Step 2: Convert to fraction form
    78,250.77/107,988.51 = 44,258.59/x
  3. Step 3: Cross multiply
    78,250.77x = 107,988.51 × 44,258.59
  4. Step 4: Simplify right side
    78,250.77x = 4,779,419,328.21
  5. Step 5: Solve for x
    x = 4,779,419,328.21/78,250.77
  6. Step 6: Final answer
    x = 61,078.24

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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.