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Finding the Fourth Proportional to 147,598.80, 221,362.20 and 42,406.80

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Solution

The fourth proportional to 147,598.80, 221,362.20 and 42,406.80 is: 63,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,598.80 : 221,362.20 = 42,406.80 : x
  2. Step 2: Convert to fraction form
    147,598.80/221,362.20 = 42,406.80/x
  3. Step 3: Cross multiply
    147,598.80x = 221,362.20 × 42,406.80
  4. Step 4: Simplify right side
    147,598.80x = 9,387,262,542.96
  5. Step 5: Solve for x
    x = 9,387,262,542.96/147,598.80
  6. Step 6: Final answer
    x = 63,599.86

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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.