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Finding the Fourth Proportional to 115,278.72, 159,124.32 and 67,547.52

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Solution

The fourth proportional to 115,278.72, 159,124.32 and 67,547.52 is: 93,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,278.72 : 159,124.32 = 67,547.52 : x
  2. Step 2: Convert to fraction form
    115,278.72/159,124.32 = 67,547.52/x
  3. Step 3: Cross multiply
    115,278.72x = 159,124.32 × 67,547.52
  4. Step 4: Simplify right side
    115,278.72x = 10,748,453,187.69
  5. Step 5: Solve for x
    x = 10,748,453,187.69/115,278.72
  6. Step 6: Final answer
    x = 93,238.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.