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Finding the Fourth Proportional to 98,664.93, 147,980.90 and 35,472.17

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Solution

The fourth proportional to 98,664.93, 147,980.90 and 35,472.17 is: 53,202.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,664.93 : 147,980.90 = 35,472.17 : x
  2. Step 2: Convert to fraction form
    98,664.93/147,980.90 = 35,472.17/x
  3. Step 3: Cross multiply
    98,664.93x = 147,980.90 × 35,472.17
  4. Step 4: Simplify right side
    98,664.93x = 5,249,202,724.29
  5. Step 5: Solve for x
    x = 5,249,202,724.29/98,664.93
  6. Step 6: Final answer
    x = 53,202.32

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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.