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Finding the Fourth Proportional to 93,684.60, 129,283.70 and 51,242.63

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Solution

The fourth proportional to 93,684.60, 129,283.70 and 51,242.63 is: 70,714.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,684.60 : 129,283.70 = 51,242.63 : x
  2. Step 2: Convert to fraction form
    93,684.60/129,283.70 = 51,242.63/x
  3. Step 3: Cross multiply
    93,684.60x = 129,283.70 × 51,242.63
  4. Step 4: Simplify right side
    93,684.60x = 6,624,835,901.50
  5. Step 5: Solve for x
    x = 6,624,835,901.50/93,684.60
  6. Step 6: Final answer
    x = 70,714.25

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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.