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Finding the Fourth Proportional to 191,069.15, 286,610.13 and 85,888.42

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Solution

The fourth proportional to 191,069.15, 286,610.13 and 85,888.42 is: 128,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,069.15 : 286,610.13 = 85,888.42 : x
  2. Step 2: Convert to fraction form
    191,069.15/286,610.13 = 85,888.42/x
  3. Step 3: Cross multiply
    191,069.15x = 286,610.13 × 85,888.42
  4. Step 4: Simplify right side
    191,069.15x = 24,616,490,505.17
  5. Step 5: Solve for x
    x = 24,616,490,505.17/191,069.15
  6. Step 6: Final answer
    x = 128,835.51

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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.