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Finding the Fourth Proportional to 147,405.72, 220,923.65 and 63,066.80

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Solution

The fourth proportional to 147,405.72, 220,923.65 and 63,066.80 is: 94,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,405.72 : 220,923.65 = 63,066.80 : x
  2. Step 2: Convert to fraction form
    147,405.72/220,923.65 = 63,066.80/x
  3. Step 3: Cross multiply
    147,405.72x = 220,923.65 × 63,066.80
  4. Step 4: Simplify right side
    147,405.72x = 13,932,948,359.80
  5. Step 5: Solve for x
    x = 13,932,948,359.80/147,405.72
  6. Step 6: Final answer
    x = 94,521.08

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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.