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Finding the Fourth Proportional to 168,730.31, 232,852.70 and 93,283.67

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Solution

The fourth proportional to 168,730.31, 232,852.70 and 93,283.67 is: 128,734.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,730.31 : 232,852.70 = 93,283.67 : x
  2. Step 2: Convert to fraction form
    168,730.31/232,852.70 = 93,283.67/x
  3. Step 3: Cross multiply
    168,730.31x = 232,852.70 × 93,283.67
  4. Step 4: Simplify right side
    168,730.31x = 21,721,354,541.12
  5. Step 5: Solve for x
    x = 21,721,354,541.12/168,730.31
  6. Step 6: Final answer
    x = 128,734.16

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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.