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Finding the Fourth Proportional to 191,361.44, 286,959.16 and 58,210.95

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Solution

The fourth proportional to 191,361.44, 286,959.16 and 58,210.95 is: 87,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,361.44 : 286,959.16 = 58,210.95 : x
  2. Step 2: Convert to fraction form
    191,361.44/286,959.16 = 58,210.95/x
  3. Step 3: Cross multiply
    191,361.44x = 286,959.16 × 58,210.95
  4. Step 4: Simplify right side
    191,361.44x = 16,704,166,136.23
  5. Step 5: Solve for x
    x = 16,704,166,136.23/191,361.44
  6. Step 6: Final answer
    x = 87,291.18

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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.