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Finding the Fourth Proportional to 135,006.70, 202,510.05 and 133,038.40

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Solution

The fourth proportional to 135,006.70, 202,510.05 and 133,038.40 is: 199,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,006.70 : 202,510.05 = 133,038.40 : x
  2. Step 2: Convert to fraction form
    135,006.70/202,510.05 = 133,038.40/x
  3. Step 3: Cross multiply
    135,006.70x = 202,510.05 × 133,038.40
  4. Step 4: Simplify right side
    135,006.70x = 26,941,613,035.92
  5. Step 5: Solve for x
    x = 26,941,613,035.92/135,006.70
  6. Step 6: Final answer
    x = 199,557.60

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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.