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Finding the Fourth Proportional to 73,875.44, 110,636.56 and 42,615.92

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Solution

The fourth proportional to 73,875.44, 110,636.56 and 42,615.92 is: 63,822.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,875.44 : 110,636.56 = 42,615.92 : x
  2. Step 2: Convert to fraction form
    73,875.44/110,636.56 = 42,615.92/x
  3. Step 3: Cross multiply
    73,875.44x = 110,636.56 × 42,615.92
  4. Step 4: Simplify right side
    73,875.44x = 4,714,878,790.04
  5. Step 5: Solve for x
    x = 4,714,878,790.04/73,875.44
  6. Step 6: Final answer
    x = 63,822.01

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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.