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Finding the Fourth Proportional to 97,448, 134,479.06 and 52,736

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Solution

The fourth proportional to 97,448, 134,479.06 and 52,736 is: 72,776.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,448 : 134,479.06 = 52,736 : x
  2. Step 2: Convert to fraction form
    97,448/134,479.06 = 52,736/x
  3. Step 3: Cross multiply
    97,448x = 134,479.06 × 52,736
  4. Step 4: Simplify right side
    97,448x = 7,091,887,708.16
  5. Step 5: Solve for x
    x = 7,091,887,708.16/97,448
  6. Step 6: Final answer
    x = 72,776.12

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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.