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Finding the Fourth Proportional to 191,029.68, 286,601.76 and 77,118.84

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Solution

The fourth proportional to 191,029.68, 286,601.76 and 77,118.84 is: 115,701.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,029.68 : 286,601.76 = 77,118.84 : x
  2. Step 2: Convert to fraction form
    191,029.68/286,601.76 = 77,118.84/x
  3. Step 3: Cross multiply
    191,029.68x = 286,601.76 × 77,118.84
  4. Step 4: Simplify right side
    191,029.68x = 22,102,395,273.16
  5. Step 5: Solve for x
    x = 22,102,395,273.16/191,029.68
  6. Step 6: Final answer
    x = 115,701.37

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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.