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Finding the Fourth Proportional to 164,085.70, 246,128.55 and 39,426.70

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Solution

The fourth proportional to 164,085.70, 246,128.55 and 39,426.70 is: 59,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,085.70 : 246,128.55 = 39,426.70 : x
  2. Step 2: Convert to fraction form
    164,085.70/246,128.55 = 39,426.70/x
  3. Step 3: Cross multiply
    164,085.70x = 246,128.55 × 39,426.70
  4. Step 4: Simplify right side
    164,085.70x = 9,704,036,502.29
  5. Step 5: Solve for x
    x = 9,704,036,502.29/164,085.70
  6. Step 6: Final answer
    x = 59,140.05

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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.