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Finding the Fourth Proportional to 76,707.60, 105,831.10 and 44,853.94

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Solution

The fourth proportional to 76,707.60, 105,831.10 and 44,853.94 is: 61,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,707.60 : 105,831.10 = 44,853.94 : x
  2. Step 2: Convert to fraction form
    76,707.60/105,831.10 = 44,853.94/x
  3. Step 3: Cross multiply
    76,707.60x = 105,831.10 × 44,853.94
  4. Step 4: Simplify right side
    76,707.60x = 4,746,941,809.53
  5. Step 5: Solve for x
    x = 4,746,941,809.53/76,707.60
  6. Step 6: Final answer
    x = 61,883.59

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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.