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Finding the Fourth Proportional to 191,018.84, 286,511.68 and 64,656.26

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Solution

The fourth proportional to 191,018.84, 286,511.68 and 64,656.26 is: 96,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,018.84 : 286,511.68 = 64,656.26 : x
  2. Step 2: Convert to fraction form
    191,018.84/286,511.68 = 64,656.26/x
  3. Step 3: Cross multiply
    191,018.84x = 286,511.68 × 64,656.26
  4. Step 4: Simplify right side
    191,018.84x = 18,524,773,675.12
  5. Step 5: Solve for x
    x = 18,524,773,675.12/191,018.84
  6. Step 6: Final answer
    x = 96,978.78

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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.