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Finding the Fourth Proportional to 163,902.55, 245,435.43 and 130,671.08

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Solution

The fourth proportional to 163,902.55, 245,435.43 and 130,671.08 is: 195,673.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,902.55 : 245,435.43 = 130,671.08 : x
  2. Step 2: Convert to fraction form
    163,902.55/245,435.43 = 130,671.08/x
  3. Step 3: Cross multiply
    163,902.55x = 245,435.43 × 130,671.08
  4. Step 4: Simplify right side
    163,902.55x = 32,071,312,708.36
  5. Step 5: Solve for x
    x = 32,071,312,708.36/163,902.55
  6. Step 6: Final answer
    x = 195,673.06

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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.