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Finding the Fourth Proportional to 93,244.96, 139,642.80 and 58,140.64

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Solution

The fourth proportional to 93,244.96, 139,642.80 and 58,140.64 is: 87,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,244.96 : 139,642.80 = 58,140.64 : x
  2. Step 2: Convert to fraction form
    93,244.96/139,642.80 = 58,140.64/x
  3. Step 3: Cross multiply
    93,244.96x = 139,642.80 × 58,140.64
  4. Step 4: Simplify right side
    93,244.96x = 8,118,921,763.39
  5. Step 5: Solve for x
    x = 8,118,921,763.39/93,244.96
  6. Step 6: Final answer
    x = 87,070.89

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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.