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Finding the Fourth Proportional to 77,274.64, 106,641.64 and 43,284.58

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Solution

The fourth proportional to 77,274.64, 106,641.64 and 43,284.58 is: 59,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,274.64 : 106,641.64 = 43,284.58 : x
  2. Step 2: Convert to fraction form
    77,274.64/106,641.64 = 43,284.58/x
  3. Step 3: Cross multiply
    77,274.64x = 106,641.64 × 43,284.58
  4. Step 4: Simplify right side
    77,274.64x = 4,615,938,597.91
  5. Step 5: Solve for x
    x = 4,615,938,597.91/77,274.64
  6. Step 6: Final answer
    x = 59,734.20

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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.