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Finding the Fourth Proportional to 191,041.28, 286,486.86 and 64,646.72

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Solution

The fourth proportional to 191,041.28, 286,486.86 and 64,646.72 is: 96,944.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,041.28 : 286,486.86 = 64,646.72 : x
  2. Step 2: Convert to fraction form
    191,041.28/286,486.86 = 64,646.72/x
  3. Step 3: Cross multiply
    191,041.28x = 286,486.86 × 64,646.72
  4. Step 4: Simplify right side
    191,041.28x = 18,520,435,822.10
  5. Step 5: Solve for x
    x = 18,520,435,822.10/191,041.28
  6. Step 6: Final answer
    x = 96,944.68

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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.