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Finding the Fourth Proportional to 76,573.62, 105,681.09 and 43,039.62

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Solution

The fourth proportional to 76,573.62, 105,681.09 and 43,039.62 is: 59,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,573.62 : 105,681.09 = 43,039.62 : x
  2. Step 2: Convert to fraction form
    76,573.62/105,681.09 = 43,039.62/x
  3. Step 3: Cross multiply
    76,573.62x = 105,681.09 × 43,039.62
  4. Step 4: Simplify right side
    76,573.62x = 4,548,473,954.79
  5. Step 5: Solve for x
    x = 4,548,473,954.79/76,573.62
  6. Step 6: Final answer
    x = 59,400.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.