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Finding the Fourth Proportional to 191,006.40, 286,320.60 and 84,448.20

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Solution

The fourth proportional to 191,006.40, 286,320.60 and 84,448.20 is: 126,588.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,006.40 : 286,320.60 = 84,448.20 : x
  2. Step 2: Convert to fraction form
    191,006.40/286,320.60 = 84,448.20/x
  3. Step 3: Cross multiply
    191,006.40x = 286,320.60 × 84,448.20
  4. Step 4: Simplify right side
    191,006.40x = 24,179,259,292.92
  5. Step 5: Solve for x
    x = 24,179,259,292.92/191,006.40
  6. Step 6: Final answer
    x = 126,588.74

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1.5x scale

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.