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Finding the Fourth Proportional to 96,361.40, 132,971.56 and 56,068.20

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Solution

The fourth proportional to 96,361.40, 132,971.56 and 56,068.20 is: 77,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,361.40 : 132,971.56 = 56,068.20 : x
  2. Step 2: Convert to fraction form
    96,361.40/132,971.56 = 56,068.20/x
  3. Step 3: Cross multiply
    96,361.40x = 132,971.56 × 56,068.20
  4. Step 4: Simplify right side
    96,361.40x = 7,455,475,880.22
  5. Step 5: Solve for x
    x = 7,455,475,880.22/96,361.40
  6. Step 6: Final answer
    x = 77,369.94

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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.