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Finding the Fourth Proportional to 85,758.93, 127,600.40 and 83,616.21

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Solution

The fourth proportional to 85,758.93, 127,600.40 and 83,616.21 is: 124,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,758.93 : 127,600.40 = 83,616.21 : x
  2. Step 2: Convert to fraction form
    85,758.93/127,600.40 = 83,616.21/x
  3. Step 3: Cross multiply
    85,758.93x = 127,600.40 × 83,616.21
  4. Step 4: Simplify right side
    85,758.93x = 10,669,461,424.40
  5. Step 5: Solve for x
    x = 10,669,461,424.40/85,758.93
  6. Step 6: Final answer
    x = 124,412.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.