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Finding the Fourth Proportional to 91,704.47, 137,547.47 and 25,151.28

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Solution

The fourth proportional to 91,704.47, 137,547.47 and 25,151.28 is: 37,724.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,704.47 : 137,547.47 = 25,151.28 : x
  2. Step 2: Convert to fraction form
    91,704.47/137,547.47 = 25,151.28/x
  3. Step 3: Cross multiply
    91,704.47x = 137,547.47 × 25,151.28
  4. Step 4: Simplify right side
    91,704.47x = 3,459,494,805.51
  5. Step 5: Solve for x
    x = 3,459,494,805.51/91,704.47
  6. Step 6: Final answer
    x = 37,724.39

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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.