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Finding the Fourth Proportional to 245,568.48, 369,046.08 and 145,747.32

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Solution

The fourth proportional to 245,568.48, 369,046.08 and 145,747.32 is: 219,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,568.48 : 369,046.08 = 145,747.32 : x
  2. Step 2: Convert to fraction form
    245,568.48/369,046.08 = 145,747.32/x
  3. Step 3: Cross multiply
    245,568.48x = 369,046.08 × 145,747.32
  4. Step 4: Simplify right side
    245,568.48x = 53,787,477,116.51
  5. Step 5: Solve for x
    x = 53,787,477,116.51/245,568.48
  6. Step 6: Final answer
    x = 219,032.50

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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.