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Finding the Fourth Proportional to 157,048.01, 216,689.61 and 91,626.63

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Solution

The fourth proportional to 157,048.01, 216,689.61 and 91,626.63 is: 126,423.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,048.01 : 216,689.61 = 91,626.63 : x
  2. Step 2: Convert to fraction form
    157,048.01/216,689.61 = 91,626.63/x
  3. Step 3: Cross multiply
    157,048.01x = 216,689.61 × 91,626.63
  4. Step 4: Simplify right side
    157,048.01x = 19,854,538,720.31
  5. Step 5: Solve for x
    x = 19,854,538,720.31/157,048.01
  6. Step 6: Final answer
    x = 126,423.37

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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.