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Finding the Fourth Proportional to 116,752.64, 161,130.77 and 71,460.77

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Solution

The fourth proportional to 116,752.64, 161,130.77 and 71,460.77 is: 98,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,752.64 : 161,130.77 = 71,460.77 : x
  2. Step 2: Convert to fraction form
    116,752.64/161,130.77 = 71,460.77/x
  3. Step 3: Cross multiply
    116,752.64x = 161,130.77 × 71,460.77
  4. Step 4: Simplify right side
    116,752.64x = 11,514,527,731.94
  5. Step 5: Solve for x
    x = 11,514,527,731.94/116,752.64
  6. Step 6: Final answer
    x = 98,623.28

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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.