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Finding the Fourth Proportional to 93,287.79, 140,048.73 and 74,798.19

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Solution

The fourth proportional to 93,287.79, 140,048.73 and 74,798.19 is: 112,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,287.79 : 140,048.73 = 74,798.19 : x
  2. Step 2: Convert to fraction form
    93,287.79/140,048.73 = 74,798.19/x
  3. Step 3: Cross multiply
    93,287.79x = 140,048.73 × 74,798.19
  4. Step 4: Simplify right side
    93,287.79x = 10,475,391,515.80
  5. Step 5: Solve for x
    x = 10,475,391,515.80/93,287.79
  6. Step 6: Final answer
    x = 112,291.13

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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.