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Finding the Fourth Proportional to 93,900.25, 129,582.48 and 51,457.87

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Solution

The fourth proportional to 93,900.25, 129,582.48 and 51,457.87 is: 71,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,900.25 : 129,582.48 = 51,457.87 : x
  2. Step 2: Convert to fraction form
    93,900.25/129,582.48 = 51,457.87/x
  3. Step 3: Cross multiply
    93,900.25x = 129,582.48 × 51,457.87
  4. Step 4: Simplify right side
    93,900.25x = 6,668,038,410.12
  5. Step 5: Solve for x
    x = 6,668,038,410.12/93,900.25
  6. Step 6: Final answer
    x = 71,011.93

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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.