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Finding the Fourth Proportional to 191,144.52, 286,606.08 and 64,742.40

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Solution

The fourth proportional to 191,144.52, 286,606.08 and 64,742.40 is: 97,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,144.52 : 286,606.08 = 64,742.40 : x
  2. Step 2: Convert to fraction form
    191,144.52/286,606.08 = 64,742.40/x
  3. Step 3: Cross multiply
    191,144.52x = 286,606.08 × 64,742.40
  4. Step 4: Simplify right side
    191,144.52x = 18,555,565,473.79
  5. Step 5: Solve for x
    x = 18,555,565,473.79/191,144.52
  6. Step 6: Final answer
    x = 97,076.10

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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.