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Finding the Fourth Proportional to 160,574.40, 221,664.60 and 115,473.60

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Solution

The fourth proportional to 160,574.40, 221,664.60 and 115,473.60 is: 159,405.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,574.40 : 221,664.60 = 115,473.60 : x
  2. Step 2: Convert to fraction form
    160,574.40/221,664.60 = 115,473.60/x
  3. Step 3: Cross multiply
    160,574.40x = 221,664.60 × 115,473.60
  4. Step 4: Simplify right side
    160,574.40x = 25,596,409,354.56
  5. Step 5: Solve for x
    x = 25,596,409,354.56/160,574.40
  6. Step 6: Final answer
    x = 159,405.29

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1.5x scale

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.