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Finding the Fourth Proportional to 73,909.51, 101,875.32 and 57,748.57

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Solution

The fourth proportional to 73,909.51, 101,875.32 and 57,748.57 is: 79,599.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,909.51 : 101,875.32 = 57,748.57 : x
  2. Step 2: Convert to fraction form
    73,909.51/101,875.32 = 57,748.57/x
  3. Step 3: Cross multiply
    73,909.51x = 101,875.32 × 57,748.57
  4. Step 4: Simplify right side
    73,909.51x = 5,883,154,080.13
  5. Step 5: Solve for x
    x = 5,883,154,080.13/73,909.51
  6. Step 6: Final answer
    x = 79,599.42

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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.