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Finding the Fourth Proportional to 76,452.80, 105,486.40 and 44,603.52

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Solution

The fourth proportional to 76,452.80, 105,486.40 and 44,603.52 is: 61,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,452.80 : 105,486.40 = 44,603.52 : x
  2. Step 2: Convert to fraction form
    76,452.80/105,486.40 = 44,603.52/x
  3. Step 3: Cross multiply
    76,452.80x = 105,486.40 × 44,603.52
  4. Step 4: Simplify right side
    76,452.80x = 4,705,064,752.13
  5. Step 5: Solve for x
    x = 4,705,064,752.13/76,452.80
  6. Step 6: Final answer
    x = 61,542.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.