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Finding the Fourth Proportional to 98,417.64, 147,535.62 and 39,239

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Solution

The fourth proportional to 98,417.64, 147,535.62 and 39,239 is: 58,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,417.64 : 147,535.62 = 39,239 : x
  2. Step 2: Convert to fraction form
    98,417.64/147,535.62 = 39,239/x
  3. Step 3: Cross multiply
    98,417.64x = 147,535.62 × 39,239
  4. Step 4: Simplify right side
    98,417.64x = 5,789,150,193.18
  5. Step 5: Solve for x
    x = 5,789,150,193.18/98,417.64
  6. Step 6: Final answer
    x = 58,822.28

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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.