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Finding the Fourth Proportional to 191,405.82, 286,897.26 and 79,024.08

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Solution

The fourth proportional to 191,405.82, 286,897.26 and 79,024.08 is: 118,448.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,405.82 : 286,897.26 = 79,024.08 : x
  2. Step 2: Convert to fraction form
    191,405.82/286,897.26 = 79,024.08/x
  3. Step 3: Cross multiply
    191,405.82x = 286,897.26 × 79,024.08
  4. Step 4: Simplify right side
    191,405.82x = 22,671,792,026.02
  5. Step 5: Solve for x
    x = 22,671,792,026.02/191,405.82
  6. Step 6: Final answer
    x = 118,448.81

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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.