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Finding the Fourth Proportional to 63,145.44, 94,711.68 and 39,700.80

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Solution

The fourth proportional to 63,145.44, 94,711.68 and 39,700.80 is: 59,547.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,145.44 : 94,711.68 = 39,700.80 : x
  2. Step 2: Convert to fraction form
    63,145.44/94,711.68 = 39,700.80/x
  3. Step 3: Cross multiply
    63,145.44x = 94,711.68 × 39,700.80
  4. Step 4: Simplify right side
    63,145.44x = 3,760,129,465.34
  5. Step 5: Solve for x
    x = 3,760,129,465.34/63,145.44
  6. Step 6: Final answer
    x = 59,547.13

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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.