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Finding the Fourth Proportional to 119,812.92, 179,829.72 and 60,689.76

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Solution

The fourth proportional to 119,812.92, 179,829.72 and 60,689.76 is: 91,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,812.92 : 179,829.72 = 60,689.76 : x
  2. Step 2: Convert to fraction form
    119,812.92/179,829.72 = 60,689.76/x
  3. Step 3: Cross multiply
    119,812.92x = 179,829.72 × 60,689.76
  4. Step 4: Simplify right side
    119,812.92x = 10,913,822,547.67
  5. Step 5: Solve for x
    x = 10,913,822,547.67/119,812.92
  6. Step 6: Final answer
    x = 91,090.53

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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.