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Finding the Fourth Proportional to 116,532.51, 160,819.66 and 65,547.61

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Solution

The fourth proportional to 116,532.51, 160,819.66 and 65,547.61 is: 90,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,532.51 : 160,819.66 = 65,547.61 : x
  2. Step 2: Convert to fraction form
    116,532.51/160,819.66 = 65,547.61/x
  3. Step 3: Cross multiply
    116,532.51x = 160,819.66 × 65,547.61
  4. Step 4: Simplify right side
    116,532.51x = 10,541,344,756.06
  5. Step 5: Solve for x
    x = 10,541,344,756.06/116,532.51
  6. Step 6: Final answer
    x = 90,458.41

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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.