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Finding the Fourth Proportional to 94,913.72, 130,978.98 and 52,471.32

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Solution

The fourth proportional to 94,913.72, 130,978.98 and 52,471.32 is: 72,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,913.72 : 130,978.98 = 52,471.32 : x
  2. Step 2: Convert to fraction form
    94,913.72/130,978.98 = 52,471.32/x
  3. Step 3: Cross multiply
    94,913.72x = 130,978.98 × 52,471.32
  4. Step 4: Simplify right side
    94,913.72x = 6,872,639,972.85
  5. Step 5: Solve for x
    x = 6,872,639,972.85/94,913.72
  6. Step 6: Final answer
    x = 72,409.34

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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.