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Finding the Fourth Proportional to 77,073.35, 106,352.66 and 43,539.35

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Solution

The fourth proportional to 77,073.35, 106,352.66 and 43,539.35 is: 60,079.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,073.35 : 106,352.66 = 43,539.35 : x
  2. Step 2: Convert to fraction form
    77,073.35/106,352.66 = 43,539.35/x
  3. Step 3: Cross multiply
    77,073.35x = 106,352.66 × 43,539.35
  4. Step 4: Simplify right side
    77,073.35x = 4,630,525,264.26
  5. Step 5: Solve for x
    x = 4,630,525,264.26/77,073.35
  6. Step 6: Final answer
    x = 60,079.46

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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.