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Finding the Fourth Proportional to 191,193.80, 286,790.70 and 96,715.40

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Solution

The fourth proportional to 191,193.80, 286,790.70 and 96,715.40 is: 145,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,193.80 : 286,790.70 = 96,715.40 : x
  2. Step 2: Convert to fraction form
    191,193.80/286,790.70 = 96,715.40/x
  3. Step 3: Cross multiply
    191,193.80x = 286,790.70 × 96,715.40
  4. Step 4: Simplify right side
    191,193.80x = 27,737,077,266.78
  5. Step 5: Solve for x
    x = 27,737,077,266.78/191,193.80
  6. Step 6: Final answer
    x = 145,073.10

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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.