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Finding the Fourth Proportional to 78,041.42, 107,702.04 and 44,055.67

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Solution

The fourth proportional to 78,041.42, 107,702.04 and 44,055.67 is: 60,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,041.42 : 107,702.04 = 44,055.67 : x
  2. Step 2: Convert to fraction form
    78,041.42/107,702.04 = 44,055.67/x
  3. Step 3: Cross multiply
    78,041.42x = 107,702.04 × 44,055.67
  4. Step 4: Simplify right side
    78,041.42x = 4,744,884,978.77
  5. Step 5: Solve for x
    x = 4,744,884,978.77/78,041.42
  6. Step 6: Final answer
    x = 60,799.57

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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.