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Finding the Fourth Proportional to 147,191.42, 220,782.08 and 42,010.40

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Solution

The fourth proportional to 147,191.42, 220,782.08 and 42,010.40 is: 63,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,191.42 : 220,782.08 = 42,010.40 : x
  2. Step 2: Convert to fraction form
    147,191.42/220,782.08 = 42,010.40/x
  3. Step 3: Cross multiply
    147,191.42x = 220,782.08 × 42,010.40
  4. Step 4: Simplify right side
    147,191.42x = 9,275,143,493.63
  5. Step 5: Solve for x
    x = 9,275,143,493.63/147,191.42
  6. Step 6: Final answer
    x = 63,014.16

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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.