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Finding the Fourth Proportional to 57,866.16, 86,657.69 and 52,256.51

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Solution

The fourth proportional to 57,866.16, 86,657.69 and 52,256.51 is: 78,256.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,866.16 : 86,657.69 = 52,256.51 : x
  2. Step 2: Convert to fraction form
    57,866.16/86,657.69 = 52,256.51/x
  3. Step 3: Cross multiply
    57,866.16x = 86,657.69 × 52,256.51
  4. Step 4: Simplify right side
    57,866.16x = 4,528,428,010.77
  5. Step 5: Solve for x
    x = 4,528,428,010.77/57,866.16
  6. Step 6: Final answer
    x = 78,256.93

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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.