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Finding the Fourth Proportional to 100,968.96, 139,337.28 and 58,552.14

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Solution

The fourth proportional to 100,968.96, 139,337.28 and 58,552.14 is: 80,802.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,968.96 : 139,337.28 = 58,552.14 : x
  2. Step 2: Convert to fraction form
    100,968.96/139,337.28 = 58,552.14/x
  3. Step 3: Cross multiply
    100,968.96x = 139,337.28 × 58,552.14
  4. Step 4: Simplify right side
    100,968.96x = 8,158,495,925.78
  5. Step 5: Solve for x
    x = 8,158,495,925.78/100,968.96
  6. Step 6: Final answer
    x = 80,802.02

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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.