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Finding the Fourth Proportional to 137,033.20, 205,549.80 and 48,386.80

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Solution

The fourth proportional to 137,033.20, 205,549.80 and 48,386.80 is: 72,580.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,033.20 : 205,549.80 = 48,386.80 : x
  2. Step 2: Convert to fraction form
    137,033.20/205,549.80 = 48,386.80/x
  3. Step 3: Cross multiply
    137,033.20x = 205,549.80 × 48,386.80
  4. Step 4: Simplify right side
    137,033.20x = 9,945,897,062.64
  5. Step 5: Solve for x
    x = 9,945,897,062.64/137,033.20
  6. Step 6: Final answer
    x = 72,580.20

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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.