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Finding the Fourth Proportional to 191,068.41, 286,608.99 and 85,887.69

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Solution

The fourth proportional to 191,068.41, 286,608.99 and 85,887.69 is: 128,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,068.41 : 286,608.99 = 85,887.69 : x
  2. Step 2: Convert to fraction form
    191,068.41/286,608.99 = 85,887.69/x
  3. Step 3: Cross multiply
    191,068.41x = 286,608.99 × 85,887.69
  4. Step 4: Simplify right side
    191,068.41x = 24,616,184,084.33
  5. Step 5: Solve for x
    x = 24,616,184,084.33/191,068.41
  6. Step 6: Final answer
    x = 128,834.40

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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.