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Finding the Fourth Proportional to 208,041.40, 312,062.10 and 183,935.80

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Solution

The fourth proportional to 208,041.40, 312,062.10 and 183,935.80 is: 275,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,041.40 : 312,062.10 = 183,935.80 : x
  2. Step 2: Convert to fraction form
    208,041.40/312,062.10 = 183,935.80/x
  3. Step 3: Cross multiply
    208,041.40x = 312,062.10 × 183,935.80
  4. Step 4: Simplify right side
    208,041.40x = 57,399,392,013.18
  5. Step 5: Solve for x
    x = 57,399,392,013.18/208,041.40
  6. Step 6: Final answer
    x = 275,903.70

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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.