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Finding the Fourth Proportional to 113,999.60, 170,999.40 and 104,668.40

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Solution

The fourth proportional to 113,999.60, 170,999.40 and 104,668.40 is: 157,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,999.60 : 170,999.40 = 104,668.40 : x
  2. Step 2: Convert to fraction form
    113,999.60/170,999.40 = 104,668.40/x
  3. Step 3: Cross multiply
    113,999.60x = 170,999.40 × 104,668.40
  4. Step 4: Simplify right side
    113,999.60x = 17,898,233,598.96
  5. Step 5: Solve for x
    x = 17,898,233,598.96/113,999.60
  6. Step 6: Final answer
    x = 157,002.60

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1.5x scale

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.