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Finding the Fourth Proportional to 112,804.48, 155,670.42 and 62,503.48

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Solution

The fourth proportional to 112,804.48, 155,670.42 and 62,503.48 is: 86,254.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,804.48 : 155,670.42 = 62,503.48 : x
  2. Step 2: Convert to fraction form
    112,804.48/155,670.42 = 62,503.48/x
  3. Step 3: Cross multiply
    112,804.48x = 155,670.42 × 62,503.48
  4. Step 4: Simplify right side
    112,804.48x = 9,729,942,983.06
  5. Step 5: Solve for x
    x = 9,729,942,983.06/112,804.48
  6. Step 6: Final answer
    x = 86,254.93

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Why These Related Problems?

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