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Finding the Fourth Proportional to 58,652.80, 87,886.90 and 45,358.36

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Solution

The fourth proportional to 58,652.80, 87,886.90 and 45,358.36 is: 67,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,652.80 : 87,886.90 = 45,358.36 : x
  2. Step 2: Convert to fraction form
    58,652.80/87,886.90 = 45,358.36/x
  3. Step 3: Cross multiply
    58,652.80x = 87,886.90 × 45,358.36
  4. Step 4: Simplify right side
    58,652.80x = 3,986,405,649.48
  5. Step 5: Solve for x
    x = 3,986,405,649.48/58,652.80
  6. Step 6: Final answer
    x = 67,966.16

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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.