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Finding the Fourth Proportional to 88,935.40, 133,079.10 and 55,671.40

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Solution

The fourth proportional to 88,935.40, 133,079.10 and 55,671.40 is: 83,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,935.40 : 133,079.10 = 55,671.40 : x
  2. Step 2: Convert to fraction form
    88,935.40/133,079.10 = 55,671.40/x
  3. Step 3: Cross multiply
    88,935.40x = 133,079.10 × 55,671.40
  4. Step 4: Simplify right side
    88,935.40x = 7,408,699,807.74
  5. Step 5: Solve for x
    x = 7,408,699,807.74/88,935.40
  6. Step 6: Final answer
    x = 83,304.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.