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Finding the Fourth Proportional to 187,547.96, 281,339.15 and 61,155.77

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Solution

The fourth proportional to 187,547.96, 281,339.15 and 61,155.77 is: 91,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,547.96 : 281,339.15 = 61,155.77 : x
  2. Step 2: Convert to fraction form
    187,547.96/281,339.15 = 61,155.77/x
  3. Step 3: Cross multiply
    187,547.96x = 281,339.15 × 61,155.77
  4. Step 4: Simplify right side
    187,547.96x = 17,205,510,636.92
  5. Step 5: Solve for x
    x = 17,205,510,636.92/187,547.96
  6. Step 6: Final answer
    x = 91,739.26

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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.