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Finding the Fourth Proportional to 128,547.89, 192,946.52 and 62,034.84

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Solution

The fourth proportional to 128,547.89, 192,946.52 and 62,034.84 is: 93,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,547.89 : 192,946.52 = 62,034.84 : x
  2. Step 2: Convert to fraction form
    128,547.89/192,946.52 = 62,034.84/x
  3. Step 3: Cross multiply
    128,547.89x = 192,946.52 × 62,034.84
  4. Step 4: Simplify right side
    128,547.89x = 11,969,406,496.76
  5. Step 5: Solve for x
    x = 11,969,406,496.76/128,547.89
  6. Step 6: Final answer
    x = 93,112.43

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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.