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Finding the Fourth Proportional to 72,630.10, 108,653.55 and 62,877.70

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Solution

The fourth proportional to 72,630.10, 108,653.55 and 62,877.70 is: 94,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,630.10 : 108,653.55 = 62,877.70 : x
  2. Step 2: Convert to fraction form
    72,630.10/108,653.55 = 62,877.70/x
  3. Step 3: Cross multiply
    72,630.10x = 108,653.55 × 62,877.70
  4. Step 4: Simplify right side
    72,630.10x = 6,831,885,320.84
  5. Step 5: Solve for x
    x = 6,831,885,320.84/72,630.10
  6. Step 6: Final answer
    x = 94,064.10

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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.