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Finding the Fourth Proportional to 191,068.96, 286,629.36 and 66,393.76

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Solution

The fourth proportional to 191,068.96, 286,629.36 and 66,393.76 is: 99,599.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,068.96 : 286,629.36 = 66,393.76 : x
  2. Step 2: Convert to fraction form
    191,068.96/286,629.36 = 66,393.76/x
  3. Step 3: Cross multiply
    191,068.96x = 286,629.36 × 66,393.76
  4. Step 4: Simplify right side
    191,068.96x = 19,030,400,936.79
  5. Step 5: Solve for x
    x = 19,030,400,936.79/191,068.96
  6. Step 6: Final answer
    x = 99,599.65

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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.