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Finding the Fourth Proportional to 104,953.60, 157,430.40 and 103,969.45

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Solution

The fourth proportional to 104,953.60, 157,430.40 and 103,969.45 is: 155,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,953.60 : 157,430.40 = 103,969.45 : x
  2. Step 2: Convert to fraction form
    104,953.60/157,430.40 = 103,969.45/x
  3. Step 3: Cross multiply
    104,953.60x = 157,430.40 × 103,969.45
  4. Step 4: Simplify right side
    104,953.60x = 16,367,952,101.28
  5. Step 5: Solve for x
    x = 16,367,952,101.28/104,953.60
  6. Step 6: Final answer
    x = 155,954.18

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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.