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Finding the Fourth Proportional to 103,116.49, 142,301.03 and 58,404.49

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Solution

The fourth proportional to 103,116.49, 142,301.03 and 58,404.49 is: 80,598.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,116.49 : 142,301.03 = 58,404.49 : x
  2. Step 2: Convert to fraction form
    103,116.49/142,301.03 = 58,404.49/x
  3. Step 3: Cross multiply
    103,116.49x = 142,301.03 × 58,404.49
  4. Step 4: Simplify right side
    103,116.49x = 8,311,018,791.60
  5. Step 5: Solve for x
    x = 8,311,018,791.60/103,116.49
  6. Step 6: Final answer
    x = 80,598.35

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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.