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Finding the Fourth Proportional to 103,641.02, 143,023.02 and 60,630.02

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Solution

The fourth proportional to 103,641.02, 143,023.02 and 60,630.02 is: 83,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,641.02 : 143,023.02 = 60,630.02 : x
  2. Step 2: Convert to fraction form
    103,641.02/143,023.02 = 60,630.02/x
  3. Step 3: Cross multiply
    103,641.02x = 143,023.02 × 60,630.02
  4. Step 4: Simplify right side
    103,641.02x = 8,671,488,563.06
  5. Step 5: Solve for x
    x = 8,671,488,563.06/103,641.02
  6. Step 6: Final answer
    x = 83,668.50

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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.