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Finding the Fourth Proportional to 76,120.70, 105,069.03 and 44,303.74

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Solution

The fourth proportional to 76,120.70, 105,069.03 and 44,303.74 is: 61,152.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,120.70 : 105,069.03 = 44,303.74 : x
  2. Step 2: Convert to fraction form
    76,120.70/105,069.03 = 44,303.74/x
  3. Step 3: Cross multiply
    76,120.70x = 105,069.03 × 44,303.74
  4. Step 4: Simplify right side
    76,120.70x = 4,654,950,987.17
  5. Step 5: Solve for x
    x = 4,654,950,987.17/76,120.70
  6. Step 6: Final answer
    x = 61,152.24

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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.