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Finding the Fourth Proportional to 134,553, 185,683.14 and 74,937

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Solution

The fourth proportional to 134,553, 185,683.14 and 74,937 is: 103,413.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,553 : 185,683.14 = 74,937 : x
  2. Step 2: Convert to fraction form
    134,553/185,683.14 = 74,937/x
  3. Step 3: Cross multiply
    134,553x = 185,683.14 × 74,937
  4. Step 4: Simplify right side
    134,553x = 13,914,537,462.18
  5. Step 5: Solve for x
    x = 13,914,537,462.18/134,553
  6. Step 6: Final answer
    x = 103,413.06

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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.