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Finding the Fourth Proportional to 116,487, 160,752.24 and 66,195.72

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Solution

The fourth proportional to 116,487, 160,752.24 and 66,195.72 is: 91,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,487 : 160,752.24 = 66,195.72 : x
  2. Step 2: Convert to fraction form
    116,487/160,752.24 = 66,195.72/x
  3. Step 3: Cross multiply
    116,487x = 160,752.24 × 66,195.72
  4. Step 4: Simplify right side
    116,487x = 10,641,110,268.41
  5. Step 5: Solve for x
    x = 10,641,110,268.41/116,487
  6. Step 6: Final answer
    x = 91,350.20

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1.5x scale

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.