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Finding the Fourth Proportional to 93,214.72, 139,117.73 and 86,894.29

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Solution

The fourth proportional to 93,214.72, 139,117.73 and 86,894.29 is: 129,684.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,214.72 : 139,117.73 = 86,894.29 : x
  2. Step 2: Convert to fraction form
    93,214.72/139,117.73 = 86,894.29/x
  3. Step 3: Cross multiply
    93,214.72x = 139,117.73 × 86,894.29
  4. Step 4: Simplify right side
    93,214.72x = 12,088,536,374.76
  5. Step 5: Solve for x
    x = 12,088,536,374.76/93,214.72
  6. Step 6: Final answer
    x = 129,684.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.