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Finding the Fourth Proportional to 152,631.96, 210,633.65 and 84,649.97

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Solution

The fourth proportional to 152,631.96, 210,633.65 and 84,649.97 is: 116,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,631.96 : 210,633.65 = 84,649.97 : x
  2. Step 2: Convert to fraction form
    152,631.96/210,633.65 = 84,649.97/x
  3. Step 3: Cross multiply
    152,631.96x = 210,633.65 × 84,649.97
  4. Step 4: Simplify right side
    152,631.96x = 17,830,132,574.26
  5. Step 5: Solve for x
    x = 17,830,132,574.26/152,631.96
  6. Step 6: Final answer
    x = 116,817.82

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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.