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Finding the Fourth Proportional to 191,014.76, 286,653.76 and 66,355.76

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Solution

The fourth proportional to 191,014.76, 286,653.76 and 66,355.76 is: 99,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,014.76 : 286,653.76 = 66,355.76 : x
  2. Step 2: Convert to fraction form
    191,014.76/286,653.76 = 66,355.76/x
  3. Step 3: Cross multiply
    191,014.76x = 286,653.76 × 66,355.76
  4. Step 4: Simplify right side
    191,014.76x = 19,021,128,101.66
  5. Step 5: Solve for x
    x = 19,021,128,101.66/191,014.76
  6. Step 6: Final answer
    x = 99,579.36

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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.