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Finding the Fourth Proportional to 146,970.80, 220,456.20 and 94,482.80

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Solution

The fourth proportional to 146,970.80, 220,456.20 and 94,482.80 is: 141,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,970.80 : 220,456.20 = 94,482.80 : x
  2. Step 2: Convert to fraction form
    146,970.80/220,456.20 = 94,482.80/x
  3. Step 3: Cross multiply
    146,970.80x = 220,456.20 × 94,482.80
  4. Step 4: Simplify right side
    146,970.80x = 20,829,319,053.36
  5. Step 5: Solve for x
    x = 20,829,319,053.36/146,970.80
  6. Step 6: Final answer
    x = 141,724.20

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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.