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Finding the Fourth Proportional to 160,424.40, 240,636.60 and 146,427.60

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Solution

The fourth proportional to 160,424.40, 240,636.60 and 146,427.60 is: 219,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,424.40 : 240,636.60 = 146,427.60 : x
  2. Step 2: Convert to fraction form
    160,424.40/240,636.60 = 146,427.60/x
  3. Step 3: Cross multiply
    160,424.40x = 240,636.60 × 146,427.60
  4. Step 4: Simplify right side
    160,424.40x = 35,235,839,810.16
  5. Step 5: Solve for x
    x = 35,235,839,810.16/160,424.40
  6. Step 6: Final answer
    x = 219,641.40

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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.