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Finding the Fourth Proportional to 105,248.50, 145,242.93 and 60,536.50

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Solution

The fourth proportional to 105,248.50, 145,242.93 and 60,536.50 is: 83,540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,248.50 : 145,242.93 = 60,536.50 : x
  2. Step 2: Convert to fraction form
    105,248.50/145,242.93 = 60,536.50/x
  3. Step 3: Cross multiply
    105,248.50x = 145,242.93 × 60,536.50
  4. Step 4: Simplify right side
    105,248.50x = 8,792,498,631.95
  5. Step 5: Solve for x
    x = 8,792,498,631.95/105,248.50
  6. Step 6: Final answer
    x = 83,540.37

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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.